Stationarity is a common assumption in statistical inference when data come from a random field, but this hypothesis has to be checked. In this paper, we build a frequency domain statistical test to check a unit root for a spatial autoregressive model, and find its asymptotic distribution....

Identifying the true determinants of export diversification is difficult as there exists no comprehensive theoretical or empirical framework to capture all potential factors in their entirety. This paper uses Bayesian Model Averaging to uncover the true long-term roots of export diversification...

In this paper, we estimate a dynamic panel data model to determine the effect of various institutional factors on the performance of a sample of Colombian companies during the period 2002-2007. Our results indicate that the analyzed companies are affected by these factors. Institutions...

The world meat market demands competitiveness and optimal livestock replacement decisions can help to achieve this goal. We introduce a novel discrete stochastic dynamic programming framework to support a manager's decision-making process of whether to sell or keep fattening animals in the beef...

We introduce a Bayesian instrumental variable procedure with spatial random effects that handles endogeneity, and spatial dependence with unobserved heterogeneity. We find through a limited Monte Carlo experiment that our proposal works well in terms of point estimates and prediction. Then, we...

Currently, the world is facing a continuous process of integration in di fferent aspects and fi nancial markets are no exception to this development. Despite the fact that global integration is gradual, one can fi nd some specfi c events that might help to accelerate this trend. This paper shows...

Con un modelo de equilibrio general computable, calibrado para Colombia, este informe evalúa el impacto que tendría sobre la economía en general, y sobre el empleo en particular, la firma de acuerdos comerciales como el ALCA (Área de Libre Comercio de las Américas) y el TLC (Tratado de...

This paper describes the evolution of industry in the "departamentos" of Antioquia and Valle (in Colombia) during the 1975-1989 period. We emphasize the adjustments of the structure of production, the flexibility of employment and the regional differences in terms of factor specialization and...

This paper tries to test an economic explanation of the industrial demand for electricity in Colombia during the period 1970-1983. The estimation of the translog equations shows the complementary or substitutability between energy and other inputs in the industrial production function. After...

The quantitative restrictions applied to imports lead to distortions in the market mechanism; since it prevents the economic agents from putting into practice their consumption plans. This article presents a simple model, based in the Armington function, which analyzes the effects these...