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(<span class="citation_date">2014</span>) <a class="citation_title" title="Click to view : Arte, antropología y museos : orientaciones poscoloniales en los Estados Unidos" href="/fez/view/bibliuned:Endoxa-2014-33-7070">Arte, antropología y museos : orientaciones poscoloniales en los Estados Unidos</a>. RecordArtículo de revistaPublishedhttp://udcdata.info/015164FilosofíaUniversidad Nacional de Educacion a Distancia (España). Facultad de FilosofíaPrice, Sallyhttp://e-spacio.uned.es/fez/view.php?pid=bibliuned:Endoxa-2014-33-7070bibliuned:Endoxa-2014-33-7070esDocumento.pdfbibliuned:Endoxa-2014-33bibliuned:Setopenairebibliuned:SetarticuloEndoxa. Año 2014, n. 33Set de openaireSet de artículoPriceAcceso abierto1.589232734232013-01-01T00:00:00Z2602014-01-10T23:19:27ZRESEÑA DE : Ferrante, Alfredo. Open Price y Compraventa = Open Price and Buying and Selling. Navarra : Aranzadi, 2013.bibliuned:RDUNED-2013-12-61450Doctoral Thesis4862<a class="citation_author_name" title="Browse by Author Name for Abad Arenas, Encarnación" href="/fez37/public/list/author/Abad Arenas, Encarnación/">Abad Arenas, Encarnación</a> . (<span class="citation_date">2013</span>) <a class="citation_title" title="Click to view : RESEÑA DE : Ferrante, Alfredo. Open Price y Compraventa = Open Price and Buying and Selling. Navarra : Aranzadi, 2013." href="/fez37/public/view/bibliuned:RDUNED-2013-12-6145">RESEÑA DE : Ferrante, Alfredo. Open Price y Compraventa = Open Price and Buying and Selling. Navarra : Aranzadi, 2013.</a>. RecordArtículo de revistaPublishedhttp://udcdata.info/021523DerechoUniversidad Nacional de Educación a Distancia (España). Facultad de DerechoAbad Arenas, Encarnaciónhttp://e-spacio.uned.es/fez/view/bibliuned:RDUNED-2013-12-6145bibliuned:RDUNED-2013-12-6145spaDocumento.pdfbibliuned:RDUNED-2013-12bibliuned:Setopenairebibliuned:SetarticuloRDUNED : revista de derecho UNED. Año 2013, n. 12Set de openaireSet de artículoAbad ArenasAcceso abierto1.423521334232021-01-15T00:00:00Z1512021-09-02T22:13:46Z2021-09-17T18:18:44ZCointegration between the structure of copper futures prices and Brexitbibliuned:DptoEEC-FCEE-Articulos-Rmartin-0001In copper futures trading, ‘contango’ (or ‘forwardation’) is the condition in which the futures price enjoys a premium over the spot price on the London Metal Exchange at the close of the second ring and ‘backwardation’ the contrary. That spread or difference between the two prices is affected by fundamentals such as supply and demand as well as by political, social, environmental and macroeconomic risks, hereafter grouped under the term ‘financialisation factors’. Based on analysis of variations in the BUKHI50P stock index that monitors the impact of Brexit on UK companies, this study shows that in the context of a market shortage, Brexit-related macroeconomics and their effect on local companies are cointegrated with the structure of copper futures prices. Guidelines are also provided for traders on when to short- and when to long-sell to capitalise on the structure of copper futures prices under simultaneous market shortage and adverse macroeconomic circumstances.03712<a class="citation_author_name" title="Navegar por nombre de Autor de Galán Gutiérrez, Juan Antonio" href="/fez/list/author/Galán Gutiérrez, Juan Antonio/">Galán Gutiérrez, Juan Antonio</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Martín García, Rodrigo" href="/fez/list/author/Martín García, Rodrigo/">Martín García, Rodrigo</a> . (<span class="citation_date">2021</span>) <a class="citation_title" title="Click para ver : Cointegration between the structure of copper futures prices and Brexit" href="/fez/view/bibliuned:DptoEEC-FCEE-Articulos-Rmartin-0001">Cointegration between the structure of copper futures prices and Brexit</a>. RecordArtículo de revistaPublishedEconomíaElsevierGalán Gutiérrez, Juan AntonioMartín García, RodrigoResources Policybibliuned:DptoEEC-FCEE-Articulos-Rmartin-0001http://e-spacio.uned.es/fez/view/bibliuned:DptoEEC-FCEE-Articulos-Rmartin-000110199871engMartin_Garcia_Rodrigo_Cointegration.pdfpresmd_Martin_Garcia_Rodrigo_Cointegration.xml0301-4207bibliuned:DptoEEC-FCEE-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Economía de la Empresa y Contabilidad (UNED). ArtículosSet de artículoSet de openairehttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsGalán GutiérrezAcceso abiertohttps://doi.org/10.1016/j.resourpol.2021.1019981.266165534172022-01-01T00:00:00Z812022-10-18T06:50:06Z2022-10-18T06:50:06ZForecasting realized densities: A comparison of historical, risk-neutral, risk-adjusted and sentiment-based transformations (Resumen)tesisuned:ED-Pg-Ciencias-RcrisostomoThis thesis deals with the mathematical models used to forecast future asset prices. Estimating asset prices is arguably one of the most relevant problems for risk managers, central bankers, and investors. Traditional statistical methods rely on point estimates or confidence intervals to estimate future realizations. However, when it comes to analyzing asset prices at a future date, obtaining the full price distribution significantly improves the information available for decision-making. This is particularly relevant in financial prices, which typically exhibit asymmetries, fat tails and other non-normal features. Consequently, estimation methods relying on mean-variance approximations do not appropriately reproduce the real-world characteristics of financial asset prices, leading to biased predictions and inappropriate model choices.0Doctoral Thesis2342<a class="citation_author_name" title="Navegar por nombre de Autor de Crisostomo Ayala, Ricardo" href="/fez/list/author/Crisostomo Ayala, Ricardo/">Crisostomo Ayala, Ricardo</a>. <b><i><a class="citation_title" title="Click para ver : Forecasting realized densities: A comparison of historical, risk-neutral, risk-adjusted and sentiment-based transformations (Resumen)" href="/fez/view/tesisuned:ED-Pg-Ciencias-Rcrisostomo">Forecasting realized densities: A comparison of historical, risk-neutral, risk-adjusted and sentiment-based transformations (Resumen)</a></i></b> . <span class="citation_date">2022</span>. <span class="citation_publisher">Universidad Nacional de Educación a Distancia (España). Escuela Internacional de Doctorado. Programa de Doctorado en Ciencias</span>RecordDoctoral ThesisPublishedMatemáticasUniversidad Nacional de Educación a Distancia (España). Escuela Internacional de Doctorado. Programa de Doctorado en CienciasCrisostomo Ayala, RicardoPrieto Rumeau, Tomastesisuned:ED-Pg-Ciencias-Rcrisostomohttp://e-spacio.uned.es/fez/view/tesisuned:ED-Pg-Ciencias-RcrisostomoengCRISOSTOMO_AYALA__Ricardo_Resumen.pdfpresmd_CRISOSTOMO_AYALA__Ricardo_Resumen.xmltesisuned:ED_Pg_Cienciasbibliuned:Setthesisbibliuned:SetopenaireEscuela de Doctorado. Programa de doctorado en Ciencias (UNED)Set de Tesis Doctorales de la UNEDSet de openairehttps://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsCrisostomo AyalaAcceso cerrado1.129891234232014-01-01T00:00:00Z5452014-05-28T23:19:27ZIntervención administrativa en materia de precios = Administrative action in pricebibliuned:REDUE-2014-26-60550Doctoral Thesis4042<a class="citation_author_name" title="Browse by Author Name for Bauzá Martorell, Felio José" href="/fez/list/author/Bauzá Martorell, Felio José/">Bauzá Martorell, Felio José</a> . (<span class="citation_date">2014</span>) <a class="citation_title" title="Click to view : Intervención administrativa en materia de precios = Administrative action in price" href="/fez/view/bibliuned:REDUE-2014-26-6055">Intervención administrativa en materia de precios = Administrative action in price</a>. RecordArtículo de revistaPublishedhttp://udcdata.info/021523DerechoUniversidad Nacional de Educación a Distancia (España). Facultad de DerechoBauzá Martorell, Felio Joséhttp://e-spacio.uned.es/fez/view/bibliuned:REDUE-2014-26-6055bibliuned:REDUE-2014-26-6055esDocumento.pdfbibliuned:REDUE-2014-26bibliuned:Setopenairebibliuned:SetarticuloRevista de derecho de la Unión Europea (REDUE). Año 2014, primer semestre, n. 26Set de openaireSet de artículoBauzá MartorellAcceso abierto1.079512234232020-04-01T00:00:00Z42024-02-10T09:07:56Z2024-02-10T09:47:24ZAnalysis of brand influence in the rockets and feathers effect using disaggregated databibliuned:DptoOE-FECO-Articulos-Jnavio-0009This paper studies price asymmetries (the ‘rockets and feathers effect’) at the firm level using an approach that fundamentally differs from the previous literature. The research analyses the Spanish oil market, using more than 11 million daily price records from December, 23, 2014, to December 31, 2017. We apply the most common econometric approach to investigate asymmetry, the error correction model, and find asymmetries for all brands, either classic brands or low-cost flag brands. Classic brands make price adjustments in shorter periods, whereas supermarket brands, as well as independent and low-cost brands, correct prices only slowly. This research makes an original contribution to the study of the rockets and feathers phenomenon using brands as the units of analysis. The speed of price adjustments is especially relevant to understanding oil market price dynamics.0302<a class="citation_author_name" title="Navegar por nombre de Autor de Palencia González, Francisco J." href="/fez/list/author/Palencia González, Francisco J./">Palencia González, Francisco J.</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Navio Marco, Julio" href="/fez/list/author/Navio Marco, Julio/">Navio Marco, Julio</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Juberías Cáceres, Gema" href="/fez/list/author/Juberías Cáceres, Gema/">Juberías Cáceres, Gema</a> . (<span class="citation_date">2020</span>) <a class="citation_title" title="Click para ver : Analysis of brand influence in the rockets and feathers effect using disaggregated data" href="/fez/view/bibliuned:DptoOE-FECO-Articulos-Jnavio-0009">Analysis of brand influence in the rockets and feathers effect using disaggregated data</a>. RecordArtículo de revistaPublishedEconomíaEmpresaEste es el manuscrito aceptado del artículo publicado por Elsevier en "Research in International Business and Finance, 52, 101168: https://doi.org/10.1016/j.ribaf.2019.101168ElsevierPalencia González, Francisco J.Navio Marco, JulioJuberías Cáceres, Gema1Research in International Business and Financebibliuned:DptoOE-FECO-Articulos-Jnavio-0009http://e-spacio.uned.es/fez/view/bibliuned:DptoOE-FECO-Articulos-Jnavio-000952engNavio_Marco_Julio_Analysis_of_brand.pdfpresmd_Navio_Marco_Julio_Analysis_of_brand.xml0275-5319; eISSN: 1878-3384bibliuned:DptoOE-FECO-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Organización de Empresas (UNED). ArtículosSet de artículoSet de openairehttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsPalencia GonzálezAcceso abiertohttps://doi.org/10.1016/j.ribaf.2019.1011680.983076334232022-01-01T00:00:00Z232024-01-13T07:21:02Z2024-01-13T07:21:02ZAsset pricing models in emerging markets: Factorial approaches vs. information stochastic discount factorbibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-0005The factorial asset pricing models generally performs poorly in emerging markets. This prediction bias implies anomalies. This study analyzes whether it is consequence of ignoring other source of risk. We apply a non-parametric approach (stochastic discount factor) to improve the forecasts of the usual factorial models. For a sample of 26 emerging equity markets, we find that the information portfolio built from the stochastic discount factor shows better goodness of fit of emerging market and, only the factor that accounts value stocks versus growth stocks is relevant to emerging equity markets, specifically, it is a sensitivity measure at risk.0402<a class="citation_author_name" title="Navegar por nombre de Autor de González-Sánchez, Mariano" href="/fez/list/author/González-Sánchez, Mariano/">González-Sánchez, Mariano</a> . (<span class="citation_date">2022</span>) <a class="citation_title" title="Click para ver : Asset pricing models in emerging markets: Factorial approaches vs. information stochastic discount factor" href="/fez/view/bibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-0005">Asset pricing models in emerging markets: Factorial approaches vs. information stochastic discount factor</a>. RecordArtículo de revistaPublishedEconomíaLa versión registrada de este artículo, publicado por primera vez en Finance Research Letters, está disponible en línea en el sitio web del editor: Elsevier, https://doi.org/10.1016/j.frl.2021.102394ElsevierGonzález-Sánchez, Mariano1Finance Research Lettersbibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-0005http://e-spacio.uned.es/fez/view/bibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-000546engGonzalez_Sanchez_Mariano_Emerging_asset.pdfpresmd_Gonzalez_Sanchez_Mariano_Emerging_asset.xml1544-6123bibliuned:DptoEEC-FCEE-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Economía de la Empresa y Contabilidad (UNED). ArtículosSet de artículoSet de openairehttp://creativecommons.org/licenses/by/4.0Licencia Creative CommonsGonzález-SánchezAcceso abiertohttps://doi.org/10.1016/j.frl.2021.1023940.9682449734232022-01-01T00:00:00Z62024-01-13T06:47:55Z2024-01-13T06:47:55ZFactorial asset pricing models using statistical anomaliesbibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-0004Although up to seven factors market, size, earnings, profitability, investment, momentum, and quality are used to explain asset returns mainly due to anomalies, there is no consensus in the financial literature on the suitability of the factors to include in asset pricing models. Empirical research has found that investors’ responses to market movements up and down are not symmetric. We show a new type of anomaly, statistical anomalies, resulting from decomposing asset returns into three independent time series: positive outliers (the good), negative outliers (the bad), and the remainder or Gaussian returns (the usual). Using a sample consisting of 49 equalweighted US industrial portfolios with daily and monthly frequencies from 1969 to 2020, we find evidence that the good-usual-bad factor model exhibits fewer anomalies, better explanatory power, and greater robustness than the “magnificent seven” factors model. Our results are relevant to investors trading at less than monthly frequencies.0382<a class="citation_author_name" title="Navegar por nombre de Autor de González-Sánchez, Mariano" href="/fez/list/author/González-Sánchez, Mariano/">González-Sánchez, Mariano</a> . (<span class="citation_date">2022</span>) <a class="citation_title" title="Click para ver : Factorial asset pricing models using statistical anomalies" href="/fez/view/bibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-0004">Factorial asset pricing models using statistical anomalies</a>. RecordArtículo de revistaPublishedEconomíaLa versión registrada de este artículo, publicado por primera vez en Research in International Business and Finance, está disponible en línea en el sitio web del editor: Elsevier, https://doi.org/10.1016/j.ribaf.2021.101595ElsevierGonzález-Sánchez, Mariano1Research in International Business and Financebibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-0004http://e-spacio.uned.es/fez/view/bibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-000460engGonzalez_Sanchez_Mariano_factorial_asset_.pdfpresmd_Gonzalez_Sanchez_Mariano_factorial_asset_.xml0275-5319bibliuned:DptoEEC-FCEE-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Economía de la Empresa y Contabilidad (UNED). ArtículosSet de artículoSet de openairehttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsGonzález-SánchezAcceso abiertohttps://doi.org/10.1016/j.ribaf.2021.1015950.9682449731982015-03-10T00:00:00Z6722015-03-13T08:28:00Z2015-03-26T07:55:08ZAproximacion a FX y Productos Quanto en el Marco Black-Scholesbibliuned:masterMatavanz-MjolzaThis work deals with how to price some financial contracts which have exposure to the risk of the currency exchange rate and the underlying price risk. The mainframe of this work is the Black-Scholes market model and the contracts will be the simplest derivatives, which will serve as an introduction to the field of Foreign Exchange and Quanto Derivatives.0Doctoral Thesis8812<a class="citation_author_name" title="Browse by Author Name for Olza Tapiz, Marcos Javier" href="/fez/list/author/Olza Tapiz, Marcos Javier/">Olza Tapiz, Marcos Javier</a>. (<span class="citation_date">2015</span>). <i><a class="citation_title" title="Click para ver : Aproximacion a FX y Productos Quanto en el Marco Black-Scholes" href="/fez/view/bibliuned:masterMatavanz-Mjolza">Aproximacion a FX y Productos Quanto en el Marco Black-Scholes</a></i> Master Thesis, <span class="citation_publisher">Universidad Nacional de Educación a Distancia (España). Facultad de Ciencias</span>Recordmaster TesisPublishedMatemáticasUniversidad Nacional de Educación a Distancia (España). Facultad de CienciasOlza Tapiz, Marcos JavierVelez Ibarrola, Ricardo (Tutor)bibliuned:masterMatavanz-Mjolzahttp://e-spacio.uned.es/fez/view/bibliuned:masterMatavanz-MjolzaspaOlza_Tapiz_Marcos_J.pdfpresmd_Olza_Tapiz_Marcos_J.xmlbibliuned:masterMatavanzbibliuned:Settrabajosfindemasterbibliuned:SetopenaireMáster Universitario en Matemáticas Avanzadas (UNED)Set de items trabajo fin de másterSet de openaireOlza TapizAcceso abierto0.959035334232022-01-01T00:00:00Z92024-01-13T05:58:37Z2024-03-14T04:03:28ZTerm Structure of Risk Factor Premiums Used for Pricing Asset: Emerging vs. Developed Marketsbibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-0003The aim of this empirical study was to estimate and compare the term structure of risk factor premiums in developed and emerging markets. Most studies use dividend and variance swap data, but as that information is not available for all markets, we use wavelet decomposition of the observed return to calculate sensitivity to risk factors and obtain a term structure for risk factor premiums. The results show that only the market risk factor (for both types of markets) and the conservative minus aggressive factor (only for developed markets) show a term structure for risk premiums.0422<a class="citation_author_name" title="Navegar por nombre de Autor de González-Sánchez, Mariano" href="/fez/list/author/González-Sánchez, Mariano/">González-Sánchez, Mariano</a> . (<span class="citation_date">2022</span>) <a class="citation_title" title="Click para ver : Term Structure of Risk Factor Premiums Used for Pricing Asset: Emerging vs. Developed Markets" href="/fez/view/bibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-0003">Term Structure of Risk Factor Premiums Used for Pricing Asset: Emerging vs. Developed Markets</a>. RecordArtículo de revistaPublishedEconomíaLa versión registrada de este artículo, publicado por primera vez en Emerging Markets Finance and Trade, está disponible en línea en el sitio web del editor: Taylor & Francis, https://doi.org/10.1080/1540496X.2021.1873128Routledge. Taylor & Francis GroupGonzález-Sánchez, Mariano1Emerging Markets Finance and Tradebibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-0003http://e-spacio.uned.es/fez/view/bibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-000313391358558engGonzalez_Sanchez_Mariano_term_structure.pdfpresmd_Gonzalez_Sanchez_Mariano_term_structure.xml1339–1358bibliuned:DptoEEC-FCEE-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Economía de la Empresa y Contabilidad (UNED). ArtículosSet de artículoSet de openairehttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsGonzález-SánchezAcceso abiertohttps://doi.org/10.1080/1540496X.2021.18731280.871884534232021-07-01T00:00:00Z72024-01-19T13:33:05Z2024-01-19T13:33:05ZMarket and Liquidity Risks Using Transaction-by-Transaction Informationbibliuned:DptoEEC-FCEE-Articulos-Aisegovia-0006The usual measures of market risk are based on the axiom of positive homogeneity while neglecting an important element of market information—liquidity. To analyze the effects of this omission, in the present study, we define the behavior of prices and volume via stochastic processes subordinated to the time elapsing between two consecutive transactions in the market. Using simulated data and market data from companies of different sizes and capitalization levels, we compare the results of measuring risk using prices compared to using both prices and volumes. The results indicate that traditional measures of market risk behave inversely to the degree of liquidity of the asset, thereby underestimating the risk of liquid assets and overestimating the risk of less liquid assets.0582<a class="citation_author_name" title="Navegar por nombre de Autor de González-Sánchez, Mariano" href="/fez/list/author/González-Sánchez, Mariano/">González-Sánchez, Mariano</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Ibáñez Jiménez, Eva M." href="/fez/list/author/Ibáñez Jiménez, Eva M./">Ibáñez Jiménez, Eva M.</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Segovia San Juan, Ana I." href="/fez/list/author/Segovia San Juan, Ana I./">Segovia San Juan, Ana I.</a> . (<span class="citation_date">2021</span>) <a class="citation_title" title="Click para ver : Market and Liquidity Risks Using Transaction-by-Transaction Information" href="/fez/view/bibliuned:DptoEEC-FCEE-Articulos-Aisegovia-0006">Market and Liquidity Risks Using Transaction-by-Transaction Information</a>. RecordArtículo de revistaPublishedEconomíaEmpresaLa versión registrada de este artículo, publicado por primera vez en Mathematics, está disponible en línea en el sitio web del editor: https://doi.org/10.3390/math9141678MDPIGonzález-Sánchez, MarianoIbáñez Jiménez, Eva M.Segovia San Juan, Ana I.Mathematicsbibliuned:DptoEEC-FCEE-Articulos-Aisegovia-0006http://e-spacio.uned.es/fez/view/bibliuned:DptoEEC-FCEE-Articulos-Aisegovia-0006149Segovia_San_Juan_Ana_Isabel_Market_and_Liquidity.pdfpresmd_Segovia_San_Juan_Ana_Isabel_Market_and_Liquidity.xml2227-7390bibliuned:DptoEEC-FCEE-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Economía de la Empresa y Contabilidad (UNED). ArtículosSet de artículoSet de openaireGonzález-SánchezAcceso abiertohttps://doi.org/10.3390/math91416780.871884534232021-01-01T00:00:00Z42024-03-07T04:30:20Z2024-03-07T04:30:20ZThe influence of Google search index on stock markets: an analysis of causality in-mean and variancebibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-0012Purpose – This empirical work studies the influence of investors’ Internet searches on financial markets. Design/methodology/approach – In this study, an asset pricing model with six factors is used, and autoregression, heteroscedasticity and moving average are taken into account to extract the independent shocks of each variable. Subsequently, a causality in-mean and in-variance analysis is performed to test the influence of Google searches on financial market variables, specifically, to test whether there is an influence on the idiosyncratic returns of financial assets. Findings – Unlike most of the literature, the results show that Google searches on the name of listed companies have little influence on the trend and volatility of asset returns. On the contrary, these searches are shown to have a significant influence on trading volumes in the following week. Practical implications –When analyzing specific effects, such as the influence of Internet searches, on financial markets, it is necessary that the model must include financial properties (asset valuation models) and statistical characteristics (stylized facts); otherwise, the empirical results could be inconsistent, since, among other issues, statistical findingsmaynot be robust given autocorrelation and heteroscedasticity, and if an asset valuationmodel is not considered, the specific effect analyzed could simply be an indirect effect of a risk factor excluded from the model. Originality/value – The empirical evidence shows that individual investors using Google have a significant influence on volume only so that institutional investors using other sources of information drive market prices. This means that potential investors should only be interested in the Internet searches index if their interest is focused on trading volume0192<a class="citation_author_name" title="Navegar por nombre de Autor de González-Sánchez, Mariano" href="/fez/list/author/González-Sánchez, Mariano/">González-Sánchez, Mariano</a> . (<span class="citation_date">2021</span>) <a class="citation_title" title="Click para ver : The influence of Google search index on stock markets: an analysis of causality in-mean and variance" href="/fez/view/bibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-0012">The influence of Google search index on stock markets: an analysis of causality in-mean and variance</a>. RecordArtículo de revistaPublishedEconomíaLa versión registrada de este artículo, publicado por primera vez en Review of Behavioral Finance, está disponible en línea en el sitio web del editor: Emerald Insight, https://doi.org/10.1108/RBF-01-2020-0011Emerald InsightGonzález-Sánchez, Mariano1Review of Behavioral Financebibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-0012http://e-spacio.uned.es/fez/view/bibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-0012202226213engGonzalez_Sanchez_Mariano_Google_search.pdfpresmd_Gonzalez_Sanchez_Mariano_Google_search.xml1940-5979bibliuned:DptoEEC-FCEE-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Economía de la Empresa y Contabilidad (UNED). ArtículosSet de artículoSet de openairehttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsGonzález-SánchezAcceso abiertohttps://doi.org/10.1108/RBF-01-2020-00110.672819734232021-06-08T00:00:00Z42024-03-07T06:08:09Z2024-03-07T06:08:09ZComparative analysis of interest rate term structures in the Solvency II environmentbibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-0014Purpose – Solvency-II is the current regulatory framework of insurance companies in the European Union. Under this standard, European Insurance and Occupational Pension Authority (EIOPA), as a regulatory board, has established that the Smith–Wilson (SW) model can be used as the model to estimate interest rate curve. This paper aims to analyze whether this model adjusts to the market curve better than Nelson–Siegel (NS) and whether the values set for the parameters are adequate. Design/methodology/approach – This empirical study analyzes whether the SW interest rate curve shows lower root mean squared errors than the NS curve for a sample of daily prices of Spanish Government bonds between 2014 and 2019. Findings – The results indicate that NS adjusts the market data better, the parameters recommended by the EIOPA correspond to the maximum values observed in the sample period and the current recommended curve for insurance companies underestimates company operations. Originality/value – This paper verifies that the criterion of the last liquid point does not allow for selecting an optimal sample to adjust the curve and criteria based on prices without arbitrage opportunities are more appropriate.0252<a class="citation_author_name" title="Navegar por nombre de Autor de Gonzalez-Sanchez, Mariano" href="/fez/list/author/Gonzalez-Sanchez, Mariano/">Gonzalez-Sanchez, Mariano</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Rodriguez-Sanchez, Sonia" href="/fez/list/author/Rodriguez-Sanchez, Sonia/">Rodriguez-Sanchez, Sonia</a> . (<span class="citation_date">2021</span>) <a class="citation_title" title="Click para ver : Comparative analysis of interest rate term structures in the Solvency II environment" href="/fez/view/bibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-0014">Comparative analysis of interest rate term structures in the Solvency II environment</a>. RecordArtículo de revistaPublishedEconomíaLa versión registrada de este artículo, publicado por primera vez en The journal of risk finance, está disponible en línea en el sitio web del editor: Emerald Group, https://doi.org/10.1108/JRF-04-2020-0067Emerald GroupGonzalez-Sanchez, MarianoRodriguez-Sanchez, Sonia1The journal of risk financebibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-0014http://e-spacio.uned.es/fez/view/bibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-00141633122engGonzalez_Sanchez_Mariano_Interest_rate.pdfpresmd_Gonzalez_Sanchez_Mariano_Interest_rate.xml1526-5943bibliuned:DptoEEC-FCEE-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Economía de la Empresa y Contabilidad (UNED). ArtículosSet de artículoSet de openairehttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsGonzalez-SanchezAcceso abiertohttps://doi.org/10.1108/JRF-04-2020-00670.672819734231998-01-01T00:00:00Z11612012-07-10T23:19:27ZEvolución del comercio exterior del vino del campo de Cariñenabibliuned:ETFSerie6-00F92A22-670D-D650-ABDA-C376F6157D1EEn este artículo se exponen las
vicisitudes por las que ha
atravesado el vino de Cariñena para
su comercialización desde el siglo
pasado. Comienza con el éxito y los
altos precios del vino conseguidos
por la demanda francesa, tras la
invasión filoxérica del país vecino,
favorecidos también por la
inauguración del ferrocarril de vía
estrecha Zaragoza-Cariñena y
seguidos de la crisis de
superproducción y consiguiente
descenso de los precios tras
finalizar el Tratado de Comercio con
Francia. Luego se explica la lenta
recuperación a lo largo de este
siglo, se facilitan las cantidades
exportadas en el último cuarto del
mismo, para analizar de forma más
exhaustiva la situación del mercado
exterior en la actualidad, donde el
comercio europeo ha vuelto a ser el
más importante y de modo especial
el de la Unión Europea.In this article the different mishaps
that the Cariñena wine has undergone
to be commercialized since the last
century are shown. The study begins
with the success and the high price of
the wine, due to the French demand,
after the phylloxera invasión in the
neighbouring country, also favoured
by the opening of the narrow-gauge
railway Zaragoza-Cariñena, and
followed by the superproduction
crises and the subsequent fall of the
prices after the end of the
Commercial Treaty with France.
Afterwards, we explain the slow
recovery along this century, giving the
exported quantities in the last quarter
of the century, and then analyzing
more thoroughiy the situation of the
foreign market nowadays, since the
European trade has regained
importance, specially the one in the
European Union.05032<a class="citation_author_name" title="Browse by Author Name for Estella Álvarez, María Concepción" href="/fez/list/author/Estella Álvarez, María Concepción/">Estella Álvarez, María Concepción</a> . (<span class="citation_date">1998</span>) <a class="citation_title" title="Click para ver : Evolución del comercio exterior del vino del campo de Cariñena" href="/fez/view/bibliuned:ETFSerie6-00F92A22-670D-D650-ABDA-C376F6157D1E">Evolución del comercio exterior del vino del campo de Cariñena</a>. RecordArtículo de revistaPublishedhttp://udcdata.info/068128GeografíaUniversidad Nacional de Educación a Distancia (España). Facultad de Geografía e HistoriaEstella Álvarez, María Concepciónbibliuned:ETFSerie6-00F92A22-670D-D650-ABDA-C376F6157D1Ehttp://e-spacio.uned.es/fez/view/bibliuned:ETFSerie6-00F92A22-670D-D650-ABDA-C376F6157D1EspaDocumento.pdfbibliuned:ETFSerieVI1998bibliuned:Setopenairebibliuned:SetarticuloEspacio, tiempo y forma. Serie VI, Geografía. Año 1998, n. 11Set de openaireSet de artículohttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsEstella ÁlvarezAcceso abierto0.672819734232015-01-01T00:00:00Z19432015-09-08T06:22:14Z2015-09-30T07:34:56ZEvolución histórica del concepto de justo precio y de la rescisión por "laesio ultradimidium"bibliuned:RDUNED-2015-16-7230La noción latina de iustum pretium, surgiría en el Derecho romano postclásico, a través de las Constituciones de Diocleciano y Maximiano CJ.4,44,2 y CJ.4,44,8, que darían origen a la rescisión del contrato de compraventa por laesio ultradimidium. En07122<a class="citation_author_name" title="Navegar por nombre de Autor de Valmaña Valmaña, Silvia" href="/fez/list/author/Valmaña Valmaña, Silvia/">Valmaña Valmaña, Silvia</a> . (<span class="citation_date">2015</span>) <a class="citation_title" title="Click para ver : Evolución histórica del concepto de justo precio y de la rescisión por &quot;laesio ultradimidium&quot;" href="/fez/view/bibliuned:RDUNED-2015-16-7230">Evolución histórica del concepto de justo precio y de la rescisión por "laesio ultradimidium"</a>. RecordArtículo de revistaPublishedDerechoUniversidad Nacional de Educación a Distancia (España). Facultad de DerechoValmaña Valmaña, Silvia1RDUNED : revista de derecho UNEDbibliuned:RDUNED-2015-16-7230http://e-spacio.uned.es/fez/view/bibliuned:RDUNED-2015-16-723074177816spaHistorical evolution of the concept of just price and of contractual rescission due to "laesio ultradimidium"evolucion_historica.pdfpresmd_evolucion_historica.xmlEISSN: 2255-3436bibliuned:RDUNED-2015-16bibliuned:Setarticulobibliuned:SetopenaireRDUNED : revista de derecho UNED. Año 2015, n. 16Set de artículoSet de openairehttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia de acceso Creative CommonsValmaña ValmañaAcceso abierto10.5944/rduned.16.2015.152630.668560134232004-01-01T00:00:00Z7092008-04-06T22:02:01ZMunicipio y mercado en el Aragón Moderno : el abasto de pescado en Zaragoza (siglos XVI-XVII)bibliuned:ETFSerie4-A28ABA53-4989-234F-256B-B5F16D15D27EEstudio relativo a la política desarrollada
por el Concejo de Zaragoza sobre el
comercio de pescado durante los siglos
XVI y XVII. La prosperidad económica de la
ciudad y del municipio permitieron crear
durante el siglo xvi condiciones favorables
para asegurar a los habitantes de
Zaragoza un suministro suficiente a un
precio asequible. Sin embargo, el declive
económico y el creciente endeudamiento
municipal forzarán durante el siglo xvii a
aumentar los impuestos sobre las
transacciones y reducir la protección al
consumidor.Tfiis paper studies municipal politics
carried out by tfie Zaragoza city council
concerning tfie fisti trade during the
sixteenth and seventeenth centuries.
Economic prosperity in the city and
council allowed to créate during the
sixteenth century favourabie conditions in
order to get a sufficient supply and a
reasonable price for the population.
However, economic decline and raising
municipal indebtedness during the
seventeenth century led to an increase of
market taxation and a reduction of
consumers' protection.05922<a class="citation_author_name" title="Browse by Author Name for Mateos Royo, José Antonio" href="/fez/list/author/Mateos Royo, José Antonio/">Mateos Royo, José Antonio</a> . (<span class="citation_date">2004</span>) <a class="citation_title" title="Click para ver : Municipio y mercado en el Aragón Moderno : el abasto de pescado en Zaragoza (siglos XVI-XVII)" href="/fez/view/bibliuned:ETFSerie4-A28ABA53-4989-234F-256B-B5F16D15D27E">Municipio y mercado en el Aragón Moderno : el abasto de pescado en Zaragoza (siglos XVI-XVII)</a>. RecordArtículo de revistaPublishedhttp://udcdata.info/068273HistoriaUniversidad Nacional de Educación a Distancia (España). Facultad de Geografía e HistoriaMateos Royo, José Antoniobibliuned:ETFSerie4-A28ABA53-4989-234F-256B-B5F16D15D27Ehttp://e-spacio.uned.es/fez/view/bibliuned:ETFSerie4-A28ABA53-4989-234F-256B-B5F16D15D27EspaDocumento.pdfbibliuned:ETFSerieIV2004bibliuned:Setopenairebibliuned:SetarticuloEspacio, tiempo y forma. Serie IV, Historia moderna. Año 2004, n. 17Set de openaireSet de artículohttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsMateos RoyoAcceso abierto0.608623134232017-12-01T00:00:00Z72024-02-01T12:10:05Z2024-02-01T12:10:05ZAn application of extreme value theory in estimating liquidity riskbibliuned:DptoEEC-FCEE-Articulos-Rarguedas-0014The last global financial crisis (2007–2008) has highlighted the weaknesses of value at risk (VaR) as a measure of market risk, as this metric by itself does not take liquidity risk into account. To address this problem, the academic literature has proposed incorporating liquidity risk into estimations of market risk by adding the VaR of the spread to the risk price. The parametric model is the standard approach used to estimate liquidity risk. As this approach does not generate reliable VaR estimates, we propose estimating liquidity risk using more sophisticated models based on extreme value theory (EVT). We find that the approach based on conditional extreme value theory outperforms the standard approach in terms of accurate VaR estimates and the market risk capital requirements of the Basel Capital Accord.0402<a class="citation_author_name" title="Navegar por nombre de Autor de Benito Muela, Sonia" href="/fez/list/author/Benito Muela, Sonia/">Benito Muela, Sonia</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de López Martín, Carmen" href="/fez/list/author/López Martín, Carmen/">López Martín, Carmen</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Arguedas-Sanz, Raquel" href="/fez/list/author/Arguedas-Sanz, Raquel/">Arguedas-Sanz, Raquel</a> . (<span class="citation_date">2017</span>) <a class="citation_title" title="Click para ver : An application of extreme value theory in estimating liquidity risk" href="/fez/view/bibliuned:DptoEEC-FCEE-Articulos-Rarguedas-0014">An application of extreme value theory in estimating liquidity risk</a>. RecordArtículo de revistaPublishedEconomíaLa versión registrada de este artículo, publicado por primera vez en European Research on Management and Business Economics, está disponible en línea en el sitio web del editor: Elsevier https://doi.org/10.1016/j.iedeen.2017.05.001ElsevierBenito Muela, SoniaLópez Martín, CarmenArguedas-Sanz, RaquelEuropean Research on Management and Business Economicsbibliuned:DptoEEC-FCEE-Articulos-Rarguedas-0014http://e-spacio.uned.es/fez/view/bibliuned:DptoEEC-FCEE-Articulos-Rarguedas-0014157164323engAeguedas_Sanz_Application_extreme.pdfpresmd_Aeguedas_Sanz_Application_extreme.xml2444-8842bibliuned:DptoEEC-FCEE-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Economía de la Empresa y Contabilidad (UNED). ArtículosSet de artículoSet de openairehttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.esLicencia Creative CommonsBenito MuelaAcceso abierto10.1016/j.iedeen.2017.05.0010.608623134231998-01-01T00:00:00Z9322008-04-05T19:16:00ZPolítica municipal y la producción artesana : las tejerías de Daroca (siglos XV-XVII)bibliuned:ETFSerie4-9F31483F-AD81-EF4D-A8F4-87E8B1513905Artículo relativo al papel
desempeñado por el Concejo
sobre la producción de materiales
de construcción en la ciudad de
Daroca durante los siglos xv, xvi
y XVII. Su principal objetivo era
crear las condiciones más favorables
para asegurar a los habitantes
de la ciudad un suministro
suficiente a un precio asequible.
El control público atravesará
sucesivas fases de crecimiento
y contracción al adaptarse a
la evolución de las relaciones sociales
y económicas dentro de la ciudad
y a las circunstancias del
momento.This paper studies the role
developped by the town council for
the production of building meteríais
in the Aragonesa town of Daroca
during the fifteenth, sixteenth and
seventeenth centuries. The main
goal of the town council was to
créate the more favourable
conditions in order to get a sufficient
supply ans a reasonable price for the
population. This public control will
pass trough different periods of
growth and decrease as a result of
its adaptation to the evolution of the
socio-economic relations inside the
town and to the specific
circunstances of each period.05002<a class="citation_author_name" title="Browse by Author Name for Mateos Royo, José Antonio" href="/fez/list/author/Mateos Royo, José Antonio/">Mateos Royo, José Antonio</a> . (<span class="citation_date">1998</span>) <a class="citation_title" title="Click para ver : Política municipal y la producción artesana : las tejerías de Daroca (siglos XV-XVII)" href="/fez/view/bibliuned:ETFSerie4-9F31483F-AD81-EF4D-A8F4-87E8B1513905">Política municipal y la producción artesana : las tejerías de Daroca (siglos XV-XVII)</a>. RecordArtículo de revistaPublishedhttp://udcdata.info/068273HistoriaUniversidad Nacional de Educación a Distancia (España). Facultad de Geografía e HistoriaMateos Royo, José Antoniobibliuned:ETFSerie4-9F31483F-AD81-EF4D-A8F4-87E8B1513905http://e-spacio.uned.es/fez/view/bibliuned:ETFSerie4-9F31483F-AD81-EF4D-A8F4-87E8B1513905spaDocumento.pdfbibliuned:ETFSerieIV1998bibliuned:Setopenairebibliuned:SetarticuloEspacio, tiempo y forma. Serie IV, Historia moderna. Año 1998, n. 11Set de openaireSet de artículohttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsMateos RoyoAcceso abierto0.608623134232011-01-01T00:00:00Z29342012-11-14T17:15:01ZLos oficios de la diversión en Romabibliuned:ETFSerieII-2011-24-2090En este trabajo repasamos todos aquellos oficios que contribuyeron al disfrute del ocio entre los antiguos romanos. Los grandes espectáculos públicos: ludi circenses que agrupaban diferentes tipos de competiciones, siendo la más apreciada las carreras de carros; los munera, primero en el circo y luego en los anfiteatros, combates, cacerías y, ocasionalmente, batallas navales. Los ludi scaenici, representaciones teatrales de menor coste organizativo que los anteriores. A todo ello se añadieron las competiciones atléticas, la asistencia a las termas, la caza, etc.In this paper, we are going to review all the professions that helped towards the enjoyment of the Ancient Romans. The great public shows: ludi circenses, that got together different types of competitions like the Chariot racing, the most appreciated one; the munera, at first in the circus and later in the amphiteatres, fights, hunters and sometimes mock sea battles. The ludi scaenici, theatral plays, whose cost price was lower than the rest of the shows. In addition to all of this, we should add the athletic competitions, the termal baths, and the hunter and so on.05842<a class="citation_author_name" title="Browse by Author Name for Cabrero Piquero, Javier" href="/fez/list/author/Cabrero Piquero, Javier/">Cabrero Piquero, Javier</a> and <a class="citation_author_name" title="Browse by Author Name for Cordente Vaquero, Félix" href="/fez/list/author/Cordente Vaquero, Félix/">Cordente Vaquero, Félix</a> . (<span class="citation_date">2011</span>) <a class="citation_title" title="Click para ver : Los oficios de la diversión en Roma" href="/fez/view/bibliuned:ETFSerieII-2011-24-2090">Los oficios de la diversión en Roma</a>. RecordArtículo de revistaPublishedhttp://udcdata.info/068273HistoriaUniversidad Nacional de Educación a Distancia (España). Facultad de Geografía e HistoriaCabrero Piquero, JavierCordente Vaquero, Félixbibliuned:ETFSerieII-2011-24-2090http://e-spacio.uned.es/fez/view/bibliuned:ETFSerieII-2011-24-2090spaDocumento.pdfbibliuned:ETFSerieII-2011bibliuned:Setopenairebibliuned:SetarticuloEspacio, tiempo y forma. Serie II, Historia antigua. Año 2011, n. 24Set de openaireSet de artículohttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsCabrero PiqueroAcceso abierto0.608623134172015-07-09T00:00:00Z34882015-09-30T11:28:17Z2016-09-02T19:22:46ZMeasuring market risk though value at risk : the the role of fat-tail and skewness distributions in VaR estimate and loss functions in models comparisontesisuned:CiencEcoEmp-ClopezOne of the most important tasks that financial institutions face is to measure any asset exposure to market risk. This risk arises as a result of the changes that may suffer the price of the assets that encompass a portfolio. One of the possible measures to quantify this risk is the evaluation of losses likely to be incurred when the price of the portfolio assets falls. This is what Value al Risk (VaR) undertakes. Since the BCBS al the Bank for International Settlements requires a financial institution to meet capital requirements on the basis of VaR estimates, allowing them to use internal models for VaR calculations, this measurement has become a basic market risk management tool for financial institutions. Consequently, it is of not surprise that the last decade has witnessed the growth of academic literature comparing alternative modelling approaches and proposing new models for VaR estimations in an attempt to improve upon those already in existence. The success of VaR is based on the fact that it is essentially a simple concept, since the VaR reduces the risk associated with a portfolio to a single number. But despite this simplicit, its statistical measurement remains today a challenge. Therefore, over the years different methodologies have been developed for obtaining more accurate VaR estimates. Thus, the main objectives pursued by this thesis are the following: 1.- The first goal in this Thesis (Chapter 2) is to conduct thorough theoretical review of existing methodologies, showing the strengths and weaknesses presented on each of them. Additionally, since there is no consensus on the best approach, a summary of the empirical results obtained by works devoted to the comparison of VaR methodologies is displayed. 2.- The second objective (Chapter 3) is the evaluation of the accuracy of some skewed and fat-tail distributions for the purpose of the VaR estimation. A comparison of a wide range of symmetric and asymmetric distributions is conducted. For such purpose, an empírical analysis using data of the main European, Americans and Asians stock indices have been performed. The comparative is addressed following two directions: first, the distributions are compared in statistical terms to determine which it is the best for fitting financial return in second place, the distributions are compared in terms of VaR, in order to select which is best for forecasting VaR. 3° As important as measuring market risk is to analyze the results of estimations generated, i.e. what is known by the ten "backtesting". Risk managers need a tool or formal procedure that allows them to analyze the VaR measure results as they are interested in choosing the best model among different alternative VaR measures. Backtesting procedures can be broadly classified into two groups: backtesting based on any statistical test and backtesting based on a loss function. The third goal of the Thesis Chapter 4) is to examine whether the comparison of VaR models depends on the loss function used for such purpose. To do so, a comparison of different VaR models using the loss functions proposed by the literature is carried out, taking into account both regulators and company risk managers concerns, and eventually checking if the results of these comparisons are robust to the loss function used. Additionally, a new firms loss function has been proposed, which has the advantage of of re covered. Finally, the Thesis ends with some concluding remarks shown in the Chapter 5.0Doctoral Thesis7722<a class="citation_author_name" title="Navegar por nombre de Autor de López Martín, Carmen" href="/fez/list/author/López Martín, Carmen/">López Martín, Carmen</a>. <b><i><a class="citation_title" title="Click para ver : Measuring market risk though value at risk : the the role of fat-tail and skewness distributions in VaR estimate and loss functions in models comparison" href="/fez/view/tesisuned:CiencEcoEmp-Clopez">Measuring market risk though value at risk : the the role of fat-tail and skewness distributions in VaR estimate and loss functions in models comparison</a></i></b> . <span class="citation_date">2015</span>. <span class="citation_publisher">Universidad Nacional de Educación a Distancia (España). Facultad de Ciencias Económicas y Empresariales. Departamento de Economía Aplicada y Gestión Pública</span>RecordDoctoral ThesisPublishedEconomíaUniversidad Nacional de Educación a Distancia (España). Facultad de Ciencias Económicas y Empresariales. Departamento de Economía Aplicada y Gestión PúblicaLópez Martín, CarmenBenito Muela, Sonia (Directora de Tesis)Abad Moreno, Pilar (Codirectora de Tesis)tesisuned:CiencEcoEmp-Clopezhttp://e-spacio.uned.es/fez/view/tesisuned:CiencEcoEmp-ClopezengLOPEZ_MARTIN_Carmen_Tesis.pdfpresmd_LOPEZ_MARTIN_Carmen_Tesis.xmlbibliuned:Setthesistesisuned:CiencEcoEmpbibliuned:SetopenaireSet de Tesis Doctorales de la UNEDTesis de la Facultad de Ciencias Económicas y Empresariales (UNED)Set de openairehttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia de acceso Creative CommonsLópez MartínAcceso abierto0.5880559734172015-02-02T00:00:00Z20542015-02-16T20:17:16Z2015-02-18T05:23:19ZDetectores de caídas para teléfonos inteligentes basados en algoritmos de detección de novedadtesisuned:IngInd-CtmedranoFalls are an important public health problem, leading to severe physical and psychological consequences among the elderly and economic consequences for health systems. A prompt detection of falls could alleviate these problems. Despite the large number of scientific studies, this kind of detectors has not become popular and a reliable and robust detector, usable by the elderly and at an affordable price, would be welcome. Computer Vision-based systems are restricted to a given environment and the variety of published algorithms indicates that the ultimate solution has not been found yet. Wearable sensors can be used at any place and time, but they are not comfortable and the user can forget to wear them. However, if the sensors were integrated in a smartphone, these drawbacks will disappear to a great extent. In this thesis, we propose to use novelty detection algorithms in mid-range smartphones. Smartphones are becoming very popular. Even though they are not adapted for older people, a suitable design could help to overcome this barrier. Besides, it is clear that the elderly in the future will get used to utilising them. Mid-range devices include accelerometers and communication functions at a reasonable price. On the other hand, several algorithms has been tested to detect falls from accelerometer data, either simple thresholds or more complex Machine Learning techniques. Novelty detection techniques model the normal behaviour (movement), so that a fall could be detected as an anomaly. This is interesting for several reasons. While real fall data are scarce, it is easy to record true data of activities of daily living (ADL), as much as needed. In addition, whenever a new user carries the phone, it can record new data and re-train the system. In this way the detector can adapt to conditions different from those of the first training phase, like the kind of movements or the place where the phone is worn. To carry on our study, we have registered a data set with ten volunteers, who simulated falls and carried the phone in their daily life for several days. The data set is publicly available, being one of the few that can be found for fall detection, and improving the others in terms of number of records. An off-line analysis has been made with our data set. We have compared some of the state-of-the-art novelty detection algorithms. We have selected the nearest neighbour (NN) as the most suitable. Then, we have compared it with a traditional classifier, a Support Vector Machine (SVM). SVM outperforms NN in a standar cross-validation, in a cross-validation by fall type or if the system operates at a different sampling frequency. Nevertheless, if the phone is worn in a different place (pocket - hand bag) or if it is personalized, NN reaches or even exceeds SVM in performance. Additional conditions regarding the inactivity or the orientation change after the fall can improve the results. We have estimated the number of false positives per week in a set of ADL of older people. We have found a reasonable number for some of them, but the system has still to ameliorate for others. A mobile application has been developed as a proof-ofconcept, checking its correct operation. Our future lines of work will be splitted in two sides. Firstly, from a more technical point of view, we would like to improve NN algorithms by smoothing the decision boundary. Secondly, we think that it would be highly desirable to record data from older people all over the time line for several days, without gaps, unlike our first data set, in order to take into account all the phases of a potential fall.0Doctoral Thesis7762<a class="citation_author_name" title="Browse by Author Name for Medrano Sánchez,Carlos Tomás" href="/fez/list/author/Medrano Sánchez,Carlos Tomás/">Medrano Sánchez,Carlos Tomás</a>. <b><i><a class="citation_title" title="Click para ver : Detectores de caídas para teléfonos inteligentes basados en algoritmos de detección de novedad" href="/fez/view/tesisuned:IngInd-Ctmedrano">Detectores de caídas para teléfonos inteligentes basados en algoritmos de detección de novedad</a></i></b> . <span class="citation_date">2015</span>. <span class="citation_publisher">Universidad Nacional de Educación a Distancia (España). Escuela Técnica Superior de Ingenieros Industriales. Departamento de Ingeniería Eléctrica, Electrónica y Control</span>RecordDoctoral ThesisPublishedIngeniería IndustrialUniversidad Nacional de Educación a Distancia (España). Escuela Técnica Superior de Ingenieros Industriales. Departamento de Ingeniería Eléctrica, Electrónica y ControlMedrano Sánchez,Carlos TomásCastro Gil, Manuel Alonso (Director de Tesis)Plaza García, Inmaculada1tesisuned:IngInd-Ctmedranohttp://e-spacio.uned.es/fez/view/tesisuned:IngInd-CtmedranospaMEDRANO_SANCHEZ_Carlos_Tomas_Tesis.pdfbackwardsFallTitle.mpgfaintingFallTitle.mpgforwardFallsTitle.mpglearningJumpingTitle.mpglearningSpinningTitle.mpgobstacleFallTitle.mpgpresmd_MEDRANO_SANCHEZ_Carlos_Tomas_Tesis.xmlpresmd_backwardsFallTitle.xmlpresmd_faintingFallTitle.xmlpresmd_forwardFallsTitle.xmlpresmd_learningJumpingTitle.xmlpresmd_learningSpinningTitle.xmlpresmd_obstacleFallTitle.xmlpresmd_publicaciones.xmlpresmd_sittingTitle.xmlpublicaciones.zipsittingTitle.mpgstream_backwardsFallTitle.flvstream_faintingFallTitle.flvstream_forwardFallsTitle.flvstream_learningJumpingTitle.flvstream_learningSpinningTitle.flvstream_obstacleFallTitle.flvstream_sittingTitle.flvthumbnail_backwardsFallTitle.jpgthumbnail_faintingFallTitle.jpgthumbnail_forwardFallsTitle.jpgthumbnail_learningJumpingTitle.jpgthumbnail_learningSpinningTitle.jpgthumbnail_obstacleFallTitle.jpgthumbnail_sittingTitle.jpgbibliuned:Setthesistesisuned:IngIndbibliuned:SetopenaireSet de Tesis Doctorales de la UNEDTesis de la Facultad E.T.S. Ingenieros Industriales (UNED)Set de openairehttps://creativecommons.org/licenses/by-nc-nd/4.0/Licencia de acceso Creative CommonsMedrano SánchezAcceso abierto0.577598734232001-06-01T00:00:00Z5922011-06-29T17:56:43ZLos nuevos barrios en construcción, en el municipio madrileño. ¿Una solución al problema de la vivienda de la capital?bibliuned:ETFSerieVI-2001-14-2070Desde su primitiva aprobación en
1993, la operación de los PAUs
constituyó la primera gran apuesta
política del gobierno popular, en su
intento de poner en el mercado del
suelo nuevas áreas de expansión, en
el interior de la ciudad central. En
este sentido, se pretendía modificar
el tradicional modelo territorial
madrileño, de expansión residencial
periférica, con el objeto de evitar el
declive demográfico de la capital. La
perspectiva de más de diez años de
gobierno municipal permite aventurar
que una parte importante de los
objetivos propuestos no se han
cumplido y lo que es aún más grave,
el problema de la vivienda se ha
acentuado hasta límites
insoportables. El crecimiento del
parque inmobiliario residencial, hecho
incontestable acaecido con el auge
de la construcción de los últimos
años, ha venido acompañado del
incremento desorbitado de los
precios y de una progresiva
disminución del número de viviendas
de protección en el mercado, lo que
ha alejado a las capas de población
de menor nivel de renta de la
posibilidad de acceso a este bien tan
fundamental.Since their original adoption in 1993,
the operation of the Programmes of
Town Planning Conduct (Spanish
abbreviation «PAU>>s) has constituted
the first great political bet of the
government of the Spanish Popular
Party, in the attempt to place new
áreas of expansión in the interior of the
city centre on the marketpiace for land.
On this basis, the aim was to alter the
traditional territorial model in Madrid of
residential expansión on the períphery,
with the object of averting the capital's
demographic decline. The perspective
of more than ten years of municipal
government allows one to venture that
a significant part of the proposed
objectives has not been fulfilled, and,
more seriously, the housing probiem
has increased to intolerable extremes.
The growth of the pool of residential
property, an undeniable fact which has
taken place with the construction boom
in recent years, has been
accompanied by a disproportionate
increase in prices, and a progressive
decrease in the number of protected
dweilings in the marketpiace, which
has distanced the strata of population
that have lower incomes from the
possibility of access to this
fundamental asset.05312<a class="citation_author_name" title="Browse by Author Name for Santos Preciado, José Miguel" href="/fez/list/author/Santos Preciado, José Miguel/">Santos Preciado, José Miguel</a> . (<span class="citation_date">2001</span>) <a class="citation_title" title="Click para ver : Los nuevos barrios en construcción, en el municipio madrileño. ¿Una solución al problema de la vivienda de la capital?" href="/fez/view/bibliuned:ETFSerieVI-2001-14-2070">Los nuevos barrios en construcción, en el municipio madrileño. ¿Una solución al problema de la vivienda de la capital?</a>. RecordArtículo de revistaPublishedhttp://udcdata.info/068128GeografíaUniversidad Nacional de Educación a Distancia (España). Facultad de Geografía e HistoriaSantos Preciado, José Miguelhttp://e-spacio.uned.es/fez/view/bibliuned:ETFSerieVI-2001-14-2070bibliuned:ETFSerieVI-2001-14-2070spaDocumento.pdfbibliuned:ETFSerieVI-2001-14bibliuned:Setopenairebibliuned:SetarticuloEspacio, tiempo y forma. Serie VI, Geografía. Año 2001, n. 14Set de openaireSet de artículohttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsSantos PreciadoAcceso abierto0.5486861534232021-10-12T00:00:00Z102024-01-11T04:42:07Z2024-01-11T04:42:07ZInterlinkages between coopetition and organisational innovation in Europebibliuned:DptoOE-FECO-Articulos-Jnavio-0002Purpose The objective of this research is to analyse the relationship between coopetition and organisational innovation in EU countries. As coopetition is usually studied from an inter-company perspective, this work looks in detail at the “ad intra” dynamics of the coopeting companies to understand how they adjust their organisation or implement organisational innovation to successfully adopt this original approach. Design/methodology/approach Using Eurostat data (CIS2014), this research offers a quantitative study on coopeting companies, relating coopetition to organisational innovation. The analysis technique used in this study is logistic regression with maximum likelihood estimation, where the dependent variable is the location of the coopeting companies. Findings The findings highlight specific characteristics and differences according to whether a company coopetes domestically or in other more complex geographic environments. It also incorporates variables into the analysis such as the use of price marketing, employee training and company size. Originality/value Our study provides insights into the relationship between coopetition and organisational innovation, in a research field that usually focuses on inter-company analysis. Several little-studied factors are included in the analysis, such as the role of employee qualifications and differences in coopetition in different geographic areas. We observe that, in certain locations, coopetition could be related to a “market entry” effect.0362<a class="citation_author_name" title="Navegar por nombre de Autor de Navío Marco, Julio" href="/fez/list/author/Navío Marco, Julio/">Navío Marco, Julio</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Ibar Alonso, Raquel" href="/fez/list/author/Ibar Alonso, Raquel/">Ibar Alonso, Raquel</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Bujidos Casado, María" href="/fez/list/author/Bujidos Casado, María/">Bujidos Casado, María</a> . (<span class="citation_date">2021</span>) <a class="citation_title" title="Click para ver : Interlinkages between coopetition and organisational innovation in Europe" href="/fez/view/bibliuned:DptoOE-FECO-Articulos-Jnavio-0002">Interlinkages between coopetition and organisational innovation in Europe</a>. RecordArtículo de revistaPublishedEconomíaEmpresaEste es el manuscrito aceptado del artículo publicado por Emerald en "Journal of Business & Industrial Marketing. 36 (9), 1665-1677" el 12 de octubre 2021, disponible en línea: https://doi.org/10.1108/JBIM-01-2020-0054EmeraldNavío Marco, JulioIbar Alonso, RaquelBujidos Casado, MaríaJournal of Business & Industrial Marketingbibliuned:DptoOE-FECO-Articulos-Jnavio-0002http://e-spacio.uned.es/fez/view/bibliuned:DptoOE-FECO-Articulos-Jnavio-000216651677936engNavio_Marco_Julio_Interlinkages_between_coopetition.pdfpresmd_Navio_Marco_Julio_Interlinkages_between_coopetition.xml0885-8624bibliuned:DptoOE-FECO-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Organización de Empresas (UNED). ArtículosSet de artículoSet de openairehttps://creativecommons.org/licenses/by-nc/4.0/Licencia Creative CommonsNavío MarcoAcceso abiertohttps://doi.org/10.1108/JBIM-01-2020-00540.5486861534232020-01-01T00:00:00Z42024-03-07T04:08:40Z2024-03-07T04:08:40ZGreenhouse Gas Emissions Growth in Europe: A Comparative Analysis of Determinantsbibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-0011Understanding the underlying reasons for greenhouse gas (GHG) emissions trends in dierent countries is fundamental for climate change mitigation. This paper identifies the main determinants that aect GHG emissions growth and assesses their impact and dierences among countries in Europe. Previous studies have produced inconclusive results and presented several limitations, such as the lack of quality of the data used, the reduced identification of determinants and the use of methods that did not enable hypothesis testing. Conversely, this research identifies an extended list of determinants of GHG emissions, performs an in-depth statistical analysis and contrasts the significance of determinants using panel data and multiple linear regression models for the period 1990–2017 for the main Eurozone countries. The study found that GDP and final energy intensity are the main drivers for the reduction of GHG emissions in Europe. Furthermore, energy prices are not significant and heterogeneous results are found for the renewable energy, fuel mix and carbon intensity determinants, pointing to a dierent behavior at the country level. The uneven impact of the main determinants of GHG emission growth suggest that a dierentiated application of European policies at country level will enhance the eciency of mitigation eorts in Europe.0272<a class="citation_author_name" title="Navegar por nombre de Autor de González-Sánchez, Mariano" href="/fez/list/author/González-Sánchez, Mariano/">González-Sánchez, Mariano</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Martín-Ortega, Juan Luis" href="/fez/list/author/Martín-Ortega, Juan Luis/">Martín-Ortega, Juan Luis</a> . (<span class="citation_date">2020</span>) <a class="citation_title" title="Click para ver : Greenhouse Gas Emissions Growth in Europe: A Comparative Analysis of Determinants" href="/fez/view/bibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-0011">Greenhouse Gas Emissions Growth in Europe: A Comparative Analysis of Determinants</a>. RecordArtículo de revistaPublishedEconomíaLa versión registrada de este artículo, publicado por primera vez en Sustainability, está disponible en línea en el sitio web del editor: MDPI, https://doi.org/10.3390/su12031012MDPIGonzález-Sánchez, MarianoMartín-Ortega, Juan Luis1Sustainabilitybibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-0011http://e-spacio.uned.es/fez/view/bibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-0011312engGonzalez_Sanchez_Mariano_GHG_grow_.pdfpresmd_Gonzalez_Sanchez_Mariano_GHG_grow_.xml1937-0695 eISSN 1937-0709bibliuned:DptoEEC-FCEE-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Economía de la Empresa y Contabilidad (UNED). ArtículosSet de artículoSet de openairehttp://creativecommons.org/licenses/by/4.0Licencia Creative CommonsGonzález-SánchezAcceso abiertohttps://doi.org/10.3390/su120310120.5486861534232021-01-01T00:00:00Z42024-03-06T08:30:00Z2024-03-06T08:30:00ZInfluence of Bloomberg’s Investor Sentiment Index: Evidence from European Union Financial Sectorbibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-0009A part of the financial literature has attempted to explain idiosyncratic asset shocks through investor behavior in response to company news and events. As a result, there has been an increase in the development of different investor sentiment measurements. This paper analyses whether the Bloomberg investor sentiment index has a causal relationship with the abnormal returns and volume shocks of major European Union (EU) financial companies through a sample of 85 financial institutions over 4 years (2014–2018) on a daily basis. The i.i.d. shocks are obtained from a factorial asset pricing model and ARMA-GARCH-type process; then we checked whether there is both individual and joint causality between the standardized residuals. The results show that the explanatory capacity of the shocks of the firm Bloomberg sentiment index is low, although there is empirical evidence that the effects correspond more to the situation of the financial subsector (banks, real estate, financial services and insurance) than to the company itself, with which we conclude that the sentiment index analyzed reflects a sectorial effect more than individual one.0222<a class="citation_author_name" title="Navegar por nombre de Autor de González-Sánchez, Mariano" href="/fez/list/author/González-Sánchez, Mariano/">González-Sánchez, Mariano</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Morales de Vega, M. Encina" href="/fez/list/author/Morales de Vega, M. Encina/">Morales de Vega, M. Encina</a> . (<span class="citation_date">2021</span>) <a class="citation_title" title="Click para ver : Influence of Bloomberg’s Investor Sentiment Index: Evidence from European Union Financial Sector" href="/fez/view/bibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-0009">Influence of Bloomberg’s Investor Sentiment Index: Evidence from European Union Financial Sector</a>. RecordArtículo de revistaPublishedEconomíaLa versión registrada de este artículo, publicado por primera vez en Risk Management, está disponible en línea en el sitio web del editor: MDPI, https://doi.org/10.3390/math9040297MDPIGonzález-Sánchez, MarianoMorales de Vega, M. Encina1Mathematicsbibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-0009http://e-spacio.uned.es/fez/view/bibliuned:DptoEEC-FCEE-Articulos-Mgonzalez-00099engGonzalez_Sanchez_Mariano_Bloomber_sentiment.pdfpresmd_Gonzalez_Sanchez_Mariano_Bloomber_sentiment.xml2227-7390bibliuned:DptoEEC-FCEE-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Economía de la Empresa y Contabilidad (UNED). ArtículosSet de artículoSet de openairehttp://creativecommons.org/licenses/by/4.0Licencia Creative CommonsGonzález-SánchezAcceso abiertohttps://doi.org/10.3390/math90402970.5486861534232021-07-01T00:00:00Z72024-01-19T12:52:05Z2024-01-19T12:52:05ZBoard of Directors’ Remuneration, Employee Costs, and Layoffs: Evidence from Spainbibliuned:DptoEEC-FCEE-Articulos-Aisegovia-0005Most of the empirical studies on board remuneration have focused on finding explanatory performance measures. There are studies that analyze if the compensation contracts of directors reward managers in such a way that they strive to maximize firm performance and shareholders’ wealth; however, there are few studies on the social aspect of corporate governance, or agent–employee and principal–employee relationships. Thus, in this study, our aim is to test whether there is a causal relationship between the remuneration of the board of directors of listed companies and the personnel policies of the companies, expressed through the cost of personnel and layoffs. For that, we used a sample of Spanish listed companies, and we found that two performance measures (return on equity and earnings per share on market price) have a greater effect on the growth rate of board remuneration when layoffs occur. Additionally, we found that the sales revenue and cash flow on total assets subsequently influenced personnel management.0562<a class="citation_author_name" title="Navegar por nombre de Autor de González-Sánchez, Mariano" href="/fez/list/author/González-Sánchez, Mariano/">González-Sánchez, Mariano</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Ibáñez Jiménez, Eva M." href="/fez/list/author/Ibáñez Jiménez, Eva M./">Ibáñez Jiménez, Eva M.</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Segovia San Juan, Ana I." href="/fez/list/author/Segovia San Juan, Ana I./">Segovia San Juan, Ana I.</a> . (<span class="citation_date">2021</span>) <a class="citation_title" title="Click para ver : Board of Directors’ Remuneration, Employee Costs, and Layoffs: Evidence from Spain" href="/fez/view/bibliuned:DptoEEC-FCEE-Articulos-Aisegovia-0005">Board of Directors’ Remuneration, Employee Costs, and Layoffs: Evidence from Spain</a>. RecordArtículo de revistaPublishedEconomíaEmpresaLa versión registrada de este artículo, publicado por primera vez en Sustainability, está disponible en línea en el sitio web del editor: https://doi.org/10.3390/su13147518MDPIGonzález-Sánchez, MarianoIbáñez Jiménez, Eva M.Segovia San Juan, Ana I.Sustainabilitybibliuned:DptoEEC-FCEE-Articulos-Aisegovia-0005http://e-spacio.uned.es/fez/view/bibliuned:DptoEEC-FCEE-Articulos-Aisegovia-00051413Segovia_San_Juan_Ana_Isabel_Board_of_Directors.pdfpresmd_Segovia_San_Juan_Ana_Isabel_Board_of_Directors.xml2071-1050bibliuned:DptoEEC-FCEE-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Economía de la Empresa y Contabilidad (UNED). ArtículosSet de artículoSet de openaireGonzález-SánchezAcceso abiertohttps://doi.org/10.3390/su131475180.5486861534232021-01-01T00:00:00Z62024-01-18T15:13:25Z2024-01-18T15:13:45ZFeel free to use my personal data: an experiment on disclosure behavior when shopping onlinebibliuned:DptoEAHE-FECO-Articulos-JLgomez-007Purpose: The goal of the article is twofold: to determine the effectiveness of monetary incentives for disclosing personal information, and to confirm the existence of a bite the bullet effect whereby people more easily accept providing personal data if they become aware of the requirement when the purchasing decision is almost taken. Design/methodology/approach: An experiment in which participants made a real purchase on the AliExpress marketplace was carried out. They were asked to login either via the Facebook button or by creating a username and password. A different reimbursement of the price paid for their purchase was offered in each case. This information was presented either at the beginning of the purchasing process or just before completing the purchase order. Findings: The monetary incentive proved to work well. The bite the bullet effect could not be assessed because many participants willingly gave their data to the company even if they had decided not to buy anything. Social implications: While people continue to publicly declare that they have privacy concerns, their behavior could not be further removed from such concerns. Practical implications: From a managerial perspective, this is good news. This is a calamity from a policy perspective. More experiments carried out in real settings are needed as a first step for reconsidering public action. Originality/value: Experiment in a completely real setting, in which participants made a purchase using their own credit card.0342<a class="citation_author_name" title="Navegar por nombre de Autor de Gómez Barroso, José Luis" href="/fez/list/author/Gómez Barroso, José Luis/">Gómez Barroso, José Luis</a> . (<span class="citation_date">2021</span>) <a class="citation_title" title="Click para ver : Feel free to use my personal data: an experiment on disclosure behavior when shopping online" href="/fez/view/bibliuned:DptoEAHE-FECO-Articulos-JLgomez-007">Feel free to use my personal data: an experiment on disclosure behavior when shopping online</a>. RecordArtículo de revistaPublishedEconomíaLa versión registrada de este artículo, publicado por primera vez en Online Information Review, está disponible en línea en el sitio web del editor: https://doi.org/10.1108/OIR-03-2020-0082EmeraldGómez Barroso, José LuisOnline Information Reviewbibliuned:DptoEAHE-FECO-Articulos-JLgomez-007http://e-spacio.uned.es/fez/view/bibliuned:DptoEAHE-FECO-Articulos-JLgomez-007537547345engGomez_Barroso_Jose_Luis_54_OnlineInfRev45-3.pdfpresmd_Gomez_Barroso_Jose_Luis_54_OnlineInfRev45-3.xml1468-4527bibliuned:DptoEAHE-FECO-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Economía Aplicada e Historia Económica (UNED). ArtículosSet de artículoSet de openairehttps://creativecommons.org/licenses/by/4.0/Licencia Creative CommonsGómez Barrosohttps://doi.org/10.1108/OIR-03-2020-00820.5486861534232022-04-29T00:00:00Z882022-05-27T02:34:47Z2022-05-27T02:36:43ZStudents’ Conceptions of Work and the Understanding of the Economic Value of Labor: A Developmental Study of Unemployment and Job Precarity in Times of an Economic Crisisbibliuned:DptoPEyE-FPSI-Articulos-Lalonso-0001In the aftermath of the financial and economic recession of 2008, 130 Spanish students of five age groups (8 to 17 years) and two socioeconomic backgrounds were individually interviewed about unemployment and lower wages. The participants were presented with two hypothetical situations, and their responses were qualitatively and quantitatively analyzed. The results indicated that children bring their conceptions of work when attempting to explain those phenomena. Specifically, it was found that the explanations were closely associated with the comprehension of the notion of surplus value (i.e., the idea that workers create more value than the cost of their salaries), and that the development of this notion proceeds in three levels. Younger children were simply unaware of the capacity of workers to create value (Level 1), which gave rise to some alternative conceptions (e.g., the idea that money for salaries comes from external sources). The children within the age range of 12-13 began to understand that workers create some value (Level 2). At this level, however, the notion of surplus value was not fully understood, and the idea that money for salaries comes from external sources persisted in a variety of ways. From the ages of 13- 14, the children begin to understand that a wage is the price of labor and that the employer earns a profit because workers create more value than the cost of their wages (Level 3). The article presents a discussion of the possible reasons behind the slow progress observed and highlights some suggestions for educational practice.05102<a class="citation_author_name" title="Navegar por nombre de Autor de Alonso Tajuelo, Lorena" href="/fez/list/author/Alonso Tajuelo, Lorena/">Alonso Tajuelo, Lorena</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Kohen, Raquel C." href="/fez/list/author/Kohen, Raquel C./">Kohen, Raquel C.</a> . (<span class="citation_date">2022</span>) <a class="citation_title" title="Click para ver : Students’ Conceptions of Work and the Understanding of the Economic Value of Labor: A Developmental Study of Unemployment and Job Precarity in Times of an Economic Crisis" href="/fez/view/bibliuned:DptoPEyE-FPSI-Articulos-Lalonso-0001">Students’ Conceptions of Work and the Understanding of the Economic Value of Labor: A Developmental Study of Unemployment and Job Precarity in Times of an Economic Crisis</a>. RecordArtículo de revistaPublishedPsicologíaEste es el manuscrito aceptado de un artículo publicado por Springer en "European journal of psychology of education" el 16 May 2022, disponible en línea: https://doi.org/10.1007/s10212-022-00619-8SpringerAlonso Tajuelo, LorenaKohen, Raquel C.1European journal of psychology of educationbibliuned:DptoPEyE-FPSI-Articulos-Lalonso-0001http://e-spacio.uned.es/fez/view/bibliuned:DptoPEyE-FPSI-Articulos-Lalonso-0001engAlonso_Lorena_Students_conceptions.pdfpresmd_Alonso_Lorena_Students_conceptions.xml0256-2928bibliuned:DptoPEyE-FPSI-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Psicología Evolutiva y de la Educación. ArtículosSet de artículoSet de openairehttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsAlonso TajueloAcceso abiertohttps://doi.org/10.1007/s10212-022-00619-80.5486861534172013-02-12T00:00:00Z207922013-04-03T12:26:23Z2017-05-19T20:56:53ZEvolución y retos del sector hotelero en Españatesisuned:CiencEcoEmp-GgonzalezDurante numerosas décadas el modelo sol y playa ha sido la base de la industria turística-hotelera española, resultando ser un producto de éxito y reconocimiento a escala mundial, lo que ha permitido situar a nuestro país a la cabeza del turismo mundial junto con dos grandes potencias como son EE.UU. y Francia. Sin embargo, en los últimos años, las debilidades del actual modelo turístico-hotelero, se han traducido en una pérdida de competitividad en relación al conjunto de la economía española. El objeto de este trabajo de investigación es doble: analizar, interpretar y caracterizar la evolución y transformación del sector hotelero en el periodo 1995 a 2010; y establecer los objetivos, retos y propuestas de actuación en el modelo turístico-hotelero español. El análisis se estructura en torno a tres ejes: contexto, operativa; y estrategia e inversión, que se desarrollan en trece capítulos y dos anexos. Debido a la complejidad del sector y a la dispersión de la información existente, se han combinado diversas metodologías de trabajo tales como: la estructuración sistemática de la información, análisis económicos; análisis estratégicos; análisis financieros y análisis de valoración; análisis operativos y análisis de modelos de gestión; y análisis DAFO multinivel, para realizar una síntesis completa del trabajo. Además, debido al carácter trasversal de la industria ha sido necesario realizar un análisis holístico de la actividad turístico hotelera. La metodología aplicada y el planteamiento ¿global¿ del trabajo han sido inducidos por la naturaleza y los orígenes del sector hotelero en España (ej. elevada atomización sectorial, bajos niveles de formación académica en sus orígenes y carencia de enfoque empresarial, etc.). En relación a las fuentes de información podemos señalar que se ha realizado una búsqueda, análisis, estructuración y tratamiento de distintas fuentes generales y fuentes de disposición pública tales como: bases de datos estadísticas de organismos oficiales (ej. INE, Banco de España, Eurostat, etc.); encuestas (ej. Encuesta de Ocupación Hotelera); indicadores (ej. IPH, Barómetro de la rentabilidad y el empleo de los destinos turísticos españoles, etc.); informes de los principales agentes públicos del sector (ej. ¿Plan Nacional e Integral de Turismo 2012 ¿ 2016¿, etc.); opiniones (ej. Gabriel Escarrer, Juan Gaspart, S.P. Barceló, etc.); artículos y publicaciones del sector (ej. Alimarket, DBK, Ernst&Young, Exceltur, CEHAT-PriceWaterhouseCoopers); y artículos académicos y artículos de prensa. Además, se han incorporado en este trabajo fuentes complementarias de carácter personal y profesional, como son el conjunto de informaciones, vivencias y experiencias profesionales generadas por el autor, durante cerca de 15 años de actividad profesional en la banca de inversión; que le han permitido: participar en las transacciones corporativas más relevantes de la industria turístico hotelera y sectores relacionados; y conocer la visión sectorial de los presidentes, consejeros delegados y directores generales de los operadores y grupos turístico-hoteleros del país. Por tanto, se combinan en este trabajo los aspectos más teóricos y analíticos de la investigación con el contexto y la realidad empresarial vivida por sector durante los últimos 15 años. Por último, en las conclusiones de la tesis, se plantea la reconversión de la actividad turístico-hotelera española, imprimiéndole un mayor nivel de análisis, estudio, rigor, profesionalidad y exigencia. Se realiza una revisión sobre los objetivos, retos y propuestas de actuación que afronta el sector en España, al objeto de conseguir mejoras estructurales en el mismo. Además, para la consecución de los grandes objetivos, retos y propuestas de actuación, se pone de manifiesto la importancia de las AA.PP., las EE.FF. y los grandes operadores del sector hotelero español, al objeto de afrontar con garantías de éxito los cambios estructurales que necesita acometer el sector.0Doctoral Thesis9652<a class="citation_author_name" title="Navegar por nombre de Autor de González Jiménez de la Espada, Gonzalo" href="/fez/list/author/González Jiménez de la Espada, Gonzalo/">González Jiménez de la Espada, Gonzalo</a>. <b><i><a class="citation_title" title="Click para ver : Evolución y retos del sector hotelero en España" href="/fez/view/tesisuned:CiencEcoEmp-Ggonzalez">Evolución y retos del sector hotelero en España</a></i></b> . <span class="citation_date">2013</span>. <span class="citation_publisher">Universidad Nacional de Educación a Distancia (España). Facultad de Ciencias Económicas y Empresariales. Departamento de Economía Aplicada</span>RecordDoctoral ThesisPublishedEconomíaEmpresaUniversidad Nacional de Educación a Distancia (España). Facultad de Ciencias Económicas y Empresariales. Departamento de Economía AplicadaGonzález Jiménez de la Espada, GonzaloIzquierdo Llanes, Gregorio (Director de Tesis)tesisuned:CiencEcoEmp-Ggonzalezhttp://e-spacio.uned.es/fez/view/tesisuned:CiencEcoEmp-GgonzalezspaDocumento.pdfbibliuned:Setthesistesisuned:CiencEcoEmpbibliuned:Setopenairebibliuned:DptoEA-FECO-TesisSet de Tesis Doctorales de la UNEDTesis de la Facultad de Ciencias Económicas y Empresariales (UNED)Set de openaireDepartamento de Economía Aplicada (UNED). Tesishttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsGonzález Jiménez de la EspadaAcceso abierto0.4727868724424416533385422822222222924114229241142