Showing 1 - 10 of 31
Es una práctica muy difundida el multiplicar la desviación estándar por la raíz del tiempo para escalarla a otros plazos. Así, con base en la estimación de la desviación estándar o del VaR (Value at Risk) diario, es usual obtener la desviación estándar o el VaR para un periodo de diez...
Persistent link: https://www.econbiz.de/10008458997
Informational constraints may turn the Merton Model for corporate credit risk impractical. Applying this framework to the Colombian financial sector is limited to four stock-market-listed firms; more than a hundred banking and non-banking firms are not listed. Within the same framework, firms'...
Persistent link: https://www.econbiz.de/10010763646
Las opciones no solo son instrumentos que ofrecen la oportunidad de cubrir o aprovechar cambios direccionales en el precio del activo subyacente, sino que permiten valorar la volatilidad de este. En mercados desarrollados es posible identificar que los agentes sobrevaloran o subvaloran la...
Persistent link: https://www.econbiz.de/10004964389
This paper estimates transition matrices for the ratings on …nancial insti-tutions, using an unusually informative data set. We show that the processof rating migration exhibits signi…cant non-Markovian behavior, in the sensethat the transition intensities are a¤ected by macroeconomic and...
Persistent link: https://www.econbiz.de/10005466419
This paper estimates transition matrices for the ratings on financial insti-tutions, using an unusually informative data set. We show that the process of rating migration exhibits significant non-Markovian behavior, in the sense that the transition intensities are affected by macroeconomic and...
Persistent link: https://www.econbiz.de/10005466433
In the present paper we remark that the absence of an intrinsic or fundamental value represents a problem for the stability of the bitcoin’s price as an asset. In addition, we consider some financial stability concerns that derive from the hypothesis that the bitcoin will survive as an asset...
Persistent link: https://www.econbiz.de/10010770365
First developed by Markowitz (1952), the mean-variance framework is the most widespread theoretical approximation to the portfolio problem. Nevertheless, successful application in the investment community has been limited. Assumptions such as normality of returns and a static correlation matrix...
Persistent link: https://www.econbiz.de/10005768099
La práctica sobre políticas de inversión diferencia entre la definición de la composición del portafolio de referencia de largo plazo o benchmark y de los mecanismos de desviación en el corto plazo respecto a ese portafolio, en lo que se conoce como asignación estratégica de activos y...
Persistent link: https://www.econbiz.de/10005597548
Utilizando información del sistema de ahorro individual entre 1998 y 2005, se encuentra evidencia de que la tasa de retorno real de los fondos y la población ocupada son los determinantes principales del número de cotizantes a las distintas AFP. El valor promedio del fondo, utilizado como...
Persistent link: https://www.econbiz.de/10005597549
A minimum performance insurance in the Principal-Agent problemis wealth reducing to the principal. This result points to further ine±-ciencies in mandatory individual Pension Funds' contracts, particularlythe one established in the 1993's 100th Law in Colombia.
Persistent link: https://www.econbiz.de/10005597607