En este artículo se analizan los principales determinantes de la rentabilidad de los bancoscomerciales en Colombia durante el período comprendido entre enero de 2000 y mayo de 2007. Seestiman los efectos de los movimientos en la tasa de cambio peso dólar sobre dicha rentabilidad,tanto en un...

La existencia de memoria de largo plazo en las series financieras implica que los retornos de un activo hoy pueden tener incidencia sobre los retornos futuros, incluso más allá del corto plazo. En presencia de dicha memoria el horizonte de inversión elegido puede resultar en diferentes...

Financial basics and intuition stresses the importance of investment horizon for risk management and asset allocation. However, the beta parameter of the Capital Asset Pricing Model (CAPM) is invariant to the holding period. Such contradiction is due to the assumption of long-term independence...

The paper examines the bidders behaviour in the Colombian government bond auctions during 2007 for the period in which there is no uncertainty in the supply. Three main findings are presented. First, in contrast with other treasury auctions (Castellanos [2]), the market clearing price in the...

Abstract Whilst emphasis has been given to short-term dependence of financial returns, long-term dependence remains overlooked. Despite financial literature provides evidence of long-term´s memory existence, serial-independence assumption prevails. This document´s long-term dependence...

Classic financial theory relies on the absolute perfection of capital markets, which results in one of the milestones of theoretical corporate finance: the firm´s value is invariant to the choice of capital structure. As an extension to the aforementioned proposition by Modigliani and Miller...

En este documento se caracteriza el endeudamiento del sector corporativo privado con el sistemafinanciero durante el período 1998-2005, y se hallan los determinantes de la probabilidadde que una empresa colombiana incumpla con el pago las obligaciones que ha contraído coneste. A trav´es de un...

Financial institutions use credit ratings to express their risk perception abouttheir clients. Credit ratings feed their internal credit scoring models, allowingthem to evaluate the current state of the quality of their balances and to calcu-late the reserves required to provision their loan...

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...

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...