Publicaciones e Investigación: Envíos recientes

Mostrando ítems 81-100 de 332

    • A relationship between the ordinary maximum entropy method and the method of maximum entropy in the mean 

      Gzyl, Henryk; ter Horst, Enrique (MDPI AG, 2014-02-24)
      There are two entropy-based methods to deal with linear inverse problems, which we shall call the ordinary method of maximum entropy (OME) and the method of maximum entropy in the mean (MEM). Not only does MEM use OME as ...

    • Financial autarchy as contagion prevention : the case of colombian pension funds 

      Cayón Fallon, Edgardo; Thorp, Susan (Routledge, 2014-12-05)
      Regulations restricting investment by pension funds in high-risk and foreign assets may quarantine member accounts from contagious transmissions during financial crises. We analyze contagion from U.S. equity markets to ...

    • Comment on article by Windle and Carvalho 

      ter Horst, Enrique; Molina, Germán (International Society for Bayesian Analysis, 2014)
      The article by Windle and Carvalho introduces a fast update procedure for covariance matrices through the introduction of higher frequency sources of information for the underlying process, demonstrated with a financial ...

    • A Bayesian Beta Markov Random Field calibration of the term structure of implied risk neutral densities 

      Casarin, Roberto; Leisen, Fabrizio; Molina, Germán; ter Horst, Enrique (International Society for Bayesian Analysis, 2015-12)
      We build on the derivative pricing calibration literature, and propose a more general calibration model for implied risk neutral densities. Our model allows for the joint calibration of a set of densities at different ...

    • Governance of family firms 

      Villalonga, Belén; Amit, Raphael; Trujillo Dávila , María Andrea; Guzmán Vásquez, Alexander (Annual Reviews, 2015)
      We review what the financial economics literature has to say about the unique ways in which the following three classic agency problems manifest themselves in family firms: (a) shareholders versus managers, (b) controlling ...

    • Application of the method of maximum entropy in the mean to classification problems 

      Gzyl, Henryk; ter Horst, Enrique; Molina, Germán (Elsevier BV, 2015-11-01)
      In this note we propose an application of the method of maximum entropy in the mean to solve a class of inverse problems comprising classification problems and feasibility problems appearing in optimization. Such problems ...

    • The role of family involvement on CEO turnover : evidence from colombian family firms 

      González Ferrero, Maximiliano; Guzmán Vásquez, Alexander; Pombo Vejarano, Carlos; Trujillo Dávila , María Andrea (Wiley-Blackwell Publishing Ltd, 2015)
      Manuscript Type Empirical Research Question/Issue We analyze CEO turnover in closely held firms with some level of ownership dispersion in a context of low investor protection. In particular, we examine the impact of ...

    • A test of the market efficiency of the Integrated Latin American Market (MILA) index in relation to changes in the price of oil 

      Hernández Gamarra, Katerin; Sarmiento Sabogal, Julio Alejandro; Cayón Fallon, Edgardo (Econjournals, 2015-04-16)
      The purpose of this paper is to study if there is a Granger causality relationship between the price of oil and the prices of the stocks that compose the Integrated Latin American Market (MILA) Index. Our analysis found ...

    • A spectral measure estimation problem in rheology 

      Gzyl, Henryk; ter Horst, Enrique; Molina, Germán (Elsevier BV, 2015-09-15)
      In this paper we consider an inverse problem appearing in rheology, consisting of determining a spectral measure over the set of relaxation times, that yields an observed collection of loss and storage moduli. Mathematically ...

    • Imagen país de Colombia desde la perspectiva extranjera 

      Echeverri Cañas, Lina María; ter Horst, Enrique; Parra Sánchez, José Hernán (Consejo Superior de Investigaciones Científicas (CSIC). Departamento de Publicaciones, 2015)
      Colombia es un país con un posicionamiento histórico negativo en mercados internacionales. Si bien los gobiernos y los prescriptores han dedicado esfuerzos por mejorarla, la percepción del extranjero se mantiene polarizada, ...

    • Bayesian inference for a structural credit risk model with stochastic volatility and stochastic interest rates 

      Rodríguez, Abel; ter Horst, Enrique; Malone, Samuel W. (Oxford University Press, 2015)
      We develop a novel structural credit risk model that extends the original Merton model by allowing for stochastic interest rates and stochastic volatility. The model is estimated using Bayesian methods implemented via a ...

    • Admission criteria for MBA programs : a review 

      Dakduk, Silvana; Malavé, José; Torres, Carmen Cecilia; Montesinos Yufa, Hugo M.; Michelena, Laura (Sage Publications, Inc., 2016-11-01)
      This paper reports a review of studies on admission criteria for MBA programs. The method consisted in a literary review based on a systematic search in international databases (Emerald, ABI/INFORM Global, ProQuest Education ...

    • The effects of the global financial crisis on the colombian local currency bonds prices : an event study 

      Cayón Fallon, Edgardo; Sarmiento Sabogal, Julio Alejandro; Shukla, Ravi K. (Emerald Publishing Limited, 2016-09-12)
      Purpose The purpose of this paper is to perform an event study using high frequency data on peso-denominated Colombian government bonds to measure the effects of news during the global financial crisis (GFC). Design/ ...

    • Elasticidades de demanda de un medicamento antidepresivo en Colombia como estrategia para evaluar poder de mercado 

      Cadena Lozano, Javier Bernardo; Ariza Garzón, Miller Janny; Pulido Cruz, Carlos Gerardo (Pontificia Universidad Javeriana, 2017-01-19)
      En este artículo se desarrolló un ejercicio de estimación de la elasticidad precio de la demanda de un medicamento “tipo” utilizado para el tratamiento de la depresión. Este trastorno afecta física y mentalmente a un gran ...

    • A test of the efficient market hypothesis with regard to the exchange rates and the yield to maturity in Colombia 

      Sarmiento Sabogal, Julio Alejandro; Hatemi J., Abdulnasser; Cayón Fallon, Edgardo (World Scientific and Engineering Academy and Society (WSEAS), 2016)
      This article investigates the informational efficiency of the Colombian stock market with regard to the information contained in the exchange rates as well as the yield to maturity. Since the underlying data is non-normal ...

    • Ferrocarriles y soberanía : el ferrocarril de Panamá, 1850-1903 

      Correa Restrepo, Juan Santiago (Instituto de Investigaciones Dr. José María Luis Mora, 2015-05-01)
      Este artículo estudia el proceso de construcción y operación del Ferrocarril de Panamá, el cual se constituyó como un proyecto pionero en el desarrollo ferroviario colombiano a mediados del siglo xix, brindando los ...

    • Determinants of successful internationalisation processes in business schools 

      Bradford, Henry; Guzmán Vásquez, Alexander; Trujillo Dávila , María Andrea (Routledge, 2017-05-18)
      We analyse the internationalisation process in business schools as a response to the globalisation phenomena and argue that environmental pressures, isomorphic forces, the pool of internal resources and the alignment of ...

    • Los centros de escritura : entre nivelación académica y construcción de conocimiento 

      Calle Arango, Lina; Pico Jaramillo, Angie Lizeth; Murillo Ospina, Javier Hernando (Fundacao Carlos Chagas, 2017-09-13)
      Los centros de escritura, originalmente llamados laboratorios o clínicas, nacieron de la necesidad de las universidades norteamericanas de subsanar los problemas de escritura de sus estudiantes. Así, su motivación inicial ...

    • El establecimiento del Barrio La Merced como muestra de urbanización burguesa de la cuenca del Río Arzobispo en Bogotá, 1910-1940 

      Murillo Ospina, Javier Hernando (Pontificia Universidad Católica de Valparaiso. Instituto de Historia, 2017)
      El auge de renovación y de cambio arquitectónico y de infraestructura que vivió Bogotá durante las primeras décadas del siglo XX estuvo determinado por intereses económicos específicos que redefinieron su estructura urbana. ...

    • Customer behavior in electronic commerce : a bayesian approach 

      Dakduk, Silvana; ter Horst, Enrique; Santalla-Banderali, Zuleima; Molina, Germán; Malavé, José (MDPI AG, 2017-05)
      Online shopping has increasingly replaced traditional retail shopping, as a large number of consumers have adopted it on a global scale. However, while it is well established in developed countries, e-commerce is still at ...