Showing 1 - 10 of 28
This study presents an alternative way of estimating credit transition matrices using a hazard function model. The model is useful both for testing the validity of the Markovian assumption, frequently made in credit rating applications, and also for estimating transition matrices conditioning on...
Persistent link: https://www.econbiz.de/10005274363
El trabajo evalúa el estado de las prácticas de gobierno corporativo en las empresas que negocian acciones ordinarias en la Bolsa de Colombia. Esta tarea se lleva a cabo mediante la construcción de un Índice de Gobierno Corporativo construido con información pública. Por otra parte se mide...
Persistent link: https://www.econbiz.de/10005274365
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...
Persistent link: https://www.econbiz.de/10005274416
En este documento se caracteriza el endeudamiento del sector corporativo privado con el sistema financiero durante el período 1998-2005, y se hallan los determinantes de la probabilidad de que una empresa colombiana incumpla con el pago las obligaciones que ha contraído con este. A través de...
Persistent link: https://www.econbiz.de/10005274455
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/10009321791
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/10009351501
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 assessment...
Persistent link: https://www.econbiz.de/10008675737
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/10010733996
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/10010862639
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/10010862660