This paper studies the falsifiability of the hypothesis of Nash behavior, for the case of a finite number of players who choose from continuous domains, subject to constraints. The results obtained here are negative. Assuming the observation of finite data sets, and using weak, but nontrivial,...

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...

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...

In this paper we investigate the impact of rapid credit growth on ex ante credit risk. We present micro-econometric evidence of the positive relationship between rapid credit growth and deterioration in lending portfolios: Loans granted during boom periods have higher probability of default than...

This paper analyzes the determinants of interest margins in the Colombian Financial System. Based on the model by Ho and Saunders (1981), interest margins are modelled as a function of the pure spread and bank-specific institutional imperfections using quarterly data for the period...

Using a panel of Colombian banks and quarterly data between 1996:1 and 2010:3, we study the relationship between short-run adjustments in bank capital buffers and the business cycle. We follow a partial adjustment framework and control for several variables that have been identified as important...

En este artículo se realiza una revisión de los modelos de supervisión frecuentementeusados y las características que estos deben cumplir para alcanzar niveles óptimos deregulación y supervisión. Adicionalmente, se revisan las ventajas que surgen al involucraral banco central en dicho...

El sistema financiero colombiano ha sufrido cambios importantes en lasúltimas décadas. Un periodo de expansión seguido de una profundacrisis económica repercutieron de manera importante en la estructura yconcentración de este mercado. Se ha analizado de manera amplia elefecto de la quiebra...

Evidence suggests that the Colombian interbank funds market is an inhomogeneous and hierarchical network in which a few financial institutions fulfill the role of “super-spreaders” of central bank liquidity among market participants. Results concur with evidence from other interbank markets...

Durante las dos últimas décadas, los mercados de deuda pública se han desarrollado significativamente en las economías emergentes. A pesar de las ventajas que el desarrollo de este mercado tiene sobre el sector financiero, la volatilidad en el precio de los bonos soberanos conlleva riesgos...