Since correlation may be interpreted as a measure of the influence across time-series, it may be conveniently mapped into a distance and into a weighted adjacency matrix. Based on such matrix, network theory has attempted to filter out the noise in correlation matrices by extracting the dominant...

Este documento realiza una descripción de las medidas de dependencia consus principales ventajas y desventajas y presenta a la cópula como una estructura flexibleque permite caracterizar diferentes tipos de dependencia. Adicionalmente, introduce eluso de la cópula en la medici´on de riesgo...

En este trabajo se analizan algunos aspectos de la regulación relacionada con el manejo del riesgo de mercado establecida por la Superintendencia Financiera de Colombia, donde se propone el valor en riesgo (VaR) como la medida para cuantificar este tipo de riesgo. No obstante, esta regulación...

Colombia experienced a deep recession in 1999-2003. Growth slowed by 4.2%,and investment by 34.6%. Was the severity of the recession due to a ¯nan-cial accelerator mechanism µa la Bernanke, Gertler, and Gilchrist (1999)? Toanswer this question, this paper estimates a dynamic stochastic general...

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...

Asset prices have recently become a common topic in economic debate. Nevertheless,much time has been spent in determining if they e®ectively exhibit a bubble component,and not in examining whether asset prices a®ectively contain relevant information concern-ing future market developments. This...

We identify interbank (i.e. non-collateralized) loans from the Colombian large-value payment system by implementing Furfine’s method. After identifying interbank loans from transactional data we obtain the interbank rates and claims without relying on financial institutions’ reported data....

This paper studies the behavior of the survival function of accruing loans during the slowdown experienced by the Colombian economy between January-2008 and March-2009 as documented by Alfonso et al. (2013). We use a dataset with information of different vintage loans between July-2007 and...

Teniendo en cuenta los cambios recientes en la intermediación financiera y los avances en regulación, este artículo estudia las condiciones de riesgo de los bancos y sus características tradicionales para analizar el funcionamiento del canal de préstamos. La evidencia indica que los bancos...