We propose two tests for the equality of covariance matrices between two high-dimensional populations. One test is on the whole variance-covariance matrices, and the other is on offdiagonal sub-matrices which define the covariance between two non-overlapping segments of the high-dimensional...

We apply specifications of the random parameters stochastic frontier cost function model to estimate bank efficiency. This class of model appears to resolve the long standing problem of confounding inefficiency and heterogeneity. Mean cost efficiencies from random models are higher by as much as...

Mineral-rich developing countries are increasingly using nonrenewable resource funds to deal commodity price volatility. Empirically, the effectiveness of sovereign oil funds (SOFs) in stabilizing fiscal revenue and macroeconomic volatility appears to be rather limited, although there has been...

Expected returns and risk assessment are important issues when evaluating capital investment projects. We use VARX-MGARCH models and asset pricing theory to model the expected rate of return in Brazil, Colombia, Mexico and Peru for late 2006. The main objective of this paper is to present an...

The aim of the paper is to re-assess the bank credit development in 11 Central and Eastern European countries and to provide new estimates of the credit-to-GDP ratio equilibrium level. Using filtering methods and dynamic panel estimations, our results suggest an “excessive” credit...

Para el caso colombiano se han analizado de manera amplia losefectos de la quiebra y la fusión de las instituciones financieras; sin embargo,no se contaba con un estudio microeconométrico para determinar los determinantesde este tipo de operaciones. Este documento se concentra en...

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...

El sistema financiero colombiano ha sufrido cambios importantes en las últimas décadas. Un período de expansión seguido de una profunda crisis económica repercutieron de manera importante en la estructura y concentración de este mercado. Se ha analizado de manera amplia el efecto de la...

This study examine the long run as well as short run relationship between China’s macroeconomic factors such as industrial production index, imports, exports, inflation rate and interest rate and Shanghai Composite Index and to explore which macroeconomic variables have significant influence...

We study the effects of securitization on renegotiation of distressed residential mortgages over the current financial crisis. Unlike prior studies, we employ unique data that directly observe lender renegotiation actions and cover more than 60% of the U.S. mortgage market. Exploiting...