Publications

 In this paper we find empirical evidence of bank lending channel for Colombia and Argentina. As for Argentina, we do not find evidence that changes in the interbank interest rate affect the growth rate of total loans directly. However, it does indirectly through interactions: the interbank…

This paper quantifies the welfare effects of decentralisation in Colombia, using a multiregional CGE model. We investigate to what extent will the Colombian population be better off when goods such as health and education, are delivered locally as against centrally. A provision scheme based on…

The empirical literature about economic growth has usually ignored spatial interdependence among countries. This paper uses spatial econometrics to estimate a growth model that includes cross-country interdependence, in which a country’s economic growth depends on the growth rate of its…

This paper estimates an asymmetric error correction model to analyse the dynamic behaviour of the Colombian unemployment rate. We find evidence that wages above their long-run equilibrium level do increase unemployment, but wages below this level do not reduce it.

In this paper we check the relationship 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…

This paper studies the performance, in terms of volatility and welfare, of different monetary policy rules in an economy with two market frictions. We consider a financial friction that highlights the credit channel as the monetary transmission mechanism and a labor friction, that considerably…

This paper studies the dynamic response of a few key macroeconomic variables to each one of three exogenous shocks: monetary, government spending and technological shocks. By using a cash in advance model with two market frictions, one in the intermediation of loanable funds, and one in the…

This paper investigates the effect of sovereign risk on the stochastic rational expectations equilibrium of a real business cycle small open economy. The market is imperfect because the sovereign cannot commit to repay its outstanding debt and chooses to default when it is optimal to do so. The…

In this paper I consider the following problem: there is a collection of exogenously given socially feasible sets, and for each one of them, each one of a group of individuals chooses from an individually feasible set. The fact that the product of the individually feasible sets is larger than…

General equilibrium theory was criticized for its apparent irrefutability, as seemingly implied by the Sonnenschein-Mantel-Debreu theorem.  This view was challenged by Brown and Matzkin (1996), who showed the existence of testable restrictions on the equilibrium manifold. Brown and Matzkin…

This paper provides an empirical analysis of Colombian integration with East Asia using a Computable General Equilibrium (CGE) model, in which we assess the effects of several trade liberalization scenarios on trade flows and welfare.The results show that there is an important potential for the…

In this theoretical report, the identifiability property of a coincident index model is studied.  As a result, characterization of the identifiability conditions solves a model specification problem, which was detected in the design of an earlier index for the Colombian economy.   Key…

In this paper, we propose a methodology for calculating a leading index of the economic activity based on a modification of Stock and Watson’s (1989, 1991, 1992) approach. We use Kalman filter techniques for estimating the state space representation of the leading index model. The methodology is…

At the end of the last decade, the real activity in Colombia underwent the sharpest recession of the last fifty years. We postulate a non-triangular structural VAR model (Amisano and Giannini, 1997) to describe the dynamics of output, prices, unemployment and wages during the last two decades.…

 The understanding of foreign investment flows is important for emerging market policy makers, since such flows make up a considerable part of the balance of payments, and since such flows tend to be very volatile. Sudden stops or reversals of investment flows have, indeed, played an…

This paper examines the relationship between mortgage default decisions and relevant observable variables under the light of a random utility model. The focus of the study is the Colombian mortgage market between 1997 and 2004 using two separate data sets that are matched using simulation…

Asset prices have recently become a common topic in economic debate. Nevertheless, much time has been spent in determining if they effectively exhibit a bubble component, and not in examining whether asset prices affectively contain relevant information concerning future market developments.…

In order to asses the credibility of their targets and policies, inflation targeting central banks always keep an eye on market expectations of the future inflation rates and short maturity interest rates. In economies with developed financial markets the prices of financial assets are a prime…