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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
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
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
En Jara, Gómez, Pardo (2005) se concluye que los portafolios de los fondos de pensiones obligatorias son financieramente ineficientes. Esta ineficiencia puede reducir el ahorro pensional y suele estar acompañada de rebalanceos frecuentes, lo cual puede afectar el normal funcionamiento de los...
Persistent link: https://www.econbiz.de/10005597611
Este trabajo desarrolla un modelo de simulación para estimar el flujo de caja de unpensionado que tiene su cuenta individual en una Administradora de Fondos dePensiones (AFP) colombiana. Se proyecta el flujo a partir de las sendas salariales ydensidades de cotización estimadas por la...
Persistent link: https://www.econbiz.de/10005597686
The effects of the Pension Fund Managers (PFMs) behavior on the foreign exchange market may be important, given the increasing size of their portfolio and their possible market power. Some authors argue that when big investors like PFMs trade large volumes in the foreign exchange market, they...
Persistent link: https://www.econbiz.de/10005597690