Showing 1 - 10 of 69
Under the view that the market is a weighted and directed network (Barabási, 2003), this document is a first attempt to model the Colombian money market within a spatial econometrics framework. By estimating two standard spatial econometric models, we study the cost of collateralized borrowing...
Persistent link: https://www.econbiz.de/10010764991
The recent financial crisis has renewed the interest of economists, both at the theoretical and empirical level, in developing a better understanding of credit and its mechanisms. A rapidly growing strand of the literature views banks as facing funding restrictions that condition their borrowing...
Persistent link: https://www.econbiz.de/10010828174
En este estudio calculamos un indicador de la actividad de shadow banking en Colombia para el período comprendido entre enero de 2011 y marzo de 2013. Dicho indicador sugiere que esta actividad ha venido incrementándose y representa cerca del 9,9% del PIB de 2012. Adicionalmente, evaluamos el...
Persistent link: https://www.econbiz.de/10010828164
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...
Persistent link: https://www.econbiz.de/10009325836
Este documento describe la metodología desarrollada por Vapnik (1995), denominada máquinas de vectores de soporte (SVM, por sus siglas en inglés) y realiza dos aplicaciones al caso de clasificación de agentes para el otorgamiento de créditos a partir de sus características. El primer caso...
Persistent link: https://www.econbiz.de/10009351486
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...
Persistent link: https://www.econbiz.de/10008642788
Informational constraints may turn the Merton Model for corporate credit risk impractical. Applying this framework to the Colombian financial sector is limited to four stock-market-listed firms; more than a hundred banking and non-banking firms are not listed. Within the same framework, firms'...
Persistent link: https://www.econbiz.de/10010763646
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...
Persistent link: https://www.econbiz.de/10010763678
A maximum likelihood method for estimating the power-law exponent verifies that the positive and negative tails of the Colombian stock market index (IGBC) and the Colombian peso exchange rate (TRM) approximate a scale-free distribution, whereas none of the heavy tails of a local sovereign...
Persistent link: https://www.econbiz.de/10010764998
Bajo el supuesto de que una serie de retornos es independiente e idénticamente distribuida (IID), la dimensión temporal del riesgo es irrelevante. De esta forma, la volatilidad calculada sobre un intervalo de tiempo (e.g. mensual) puede ser estimada a partir de la calculada sobre otro...
Persistent link: https://www.econbiz.de/10010765011