Realized volatility of stock returns is often decomposed into two distinct components that are attributed to continuous price variation and jumps. This paper proposes a tobit multivariate factor model for the jumps coupled with a standard multivariate factor model for the continuous sample path...

In this paper we check the relationschip between the yields of the Colombian bonds traded in the (secondary) internal market and the yields of the sovereign global securities for the sample period 1999-2001. The hypothesis we maintain is that, under the assumption of capital mobility, it should...

En este documento se construye un Indice de Percepción de Riesgo de los inversionistas institucionales en los mercados industrializados. Este índice se estima con base en un modelo de análisis factorial dinámico, que explora las tendencias comunes de las volatilidades de los retornos de una...

En este documento se utilizan herramientas de análisis de redes tradicionales para describir las características generales de la estructura del Mercado Electrónico Colombiano (MEC). Se encontró que éste está fuertemente concentrado en unos pocos agentes, con bajo nivel de conectividad,...

In this paper, we develop the modified maximum likelihood (MML) estimators for the multiple regression coefficients in linear model with the underlying distribution assumed to be symmetric, one of Student's t family. We obtain the closed form of the estimators and derive their asymptotic...

The impact of parameterisation on the simulation efficiency of Bayesian Markov chain Monte Carlo (MCMC) algorithms for two non-Gaussian state space models is examined. Specifically, focus is given to particular forms of the stochastic conditional duration (SCD) model and the stochastic...

This study contributes in bridging the dichotomy between economic growth and business cycle paradigms by providing dynamic characterisation of the link between economic growth, risk aversion, uncertainty and variability in industrial production, consumption and investment. In a system of...

The focus of this study is to build, from the ‘bottom-up’, a market with artificially intelligent adaptive agents based on the institutional arrangement of the Colombian Foreign Exchange Market (1994-1999) in order to determine simple agents’ design, rules and interactions that are...

Es común en la literatura considerar el riesgo de crédito como una de las principales fuentes de inestabilidad del sistema financiero. Con el fin de evaluar la sensibilidad del riesgo de crédito ante cambios en algunas variables macroeconómicas y sus posibles efectos sobre la rentabilidad de...

En este trabajo se propone una metodología para cuantificar la centralidad de los agentes que participan en el mercado interbancario, bajo un enfoque de juegos cooperativos. La metodología utiliza diferencias de valores de Shapley en juegos de transacciones con y sin restricciones de red...