The crisis of the global financial markets that struck the world economy in the mid 2008 affected the world economy as a whole; nevertheless, it also had a great impact upon the labour force market in the European countries. The migration dropped, differentiated by certain geographic areas. This...

We analyze linear models with a single endogenous regressor in the presence of many instrumental variables. We weaken a key assumption typically made in this literature by allowing all the instruments to have direct effects on the outcome. We consider restrictions on these direct effects that...

It is well known that economic growth and services have a positive association. In particular, the more developed an economy is, the higher the share of the services sector. While most research has focused on service output, this study also examines services as input. Recently, the need for...

Este artigo avalia a sustentabilidade da política fiscal do Rio Grande do Sul a partir de um modelo de correção de equilíbrio com mudanças Markovianas de regime. São estudadas as dinâmicas de curto e de longo prazo da política fiscal do Estado no período compreendido entre 1970 e 2007....

Given conflicting results on whether the US monetary policy rule exhibited nonlinearity in the post-war period we employ a new Granger non-causality nonlinearity test and non-parametric procedures to re-examine the issue. Both procedures suggest that the Fed followed a nonlinear Taylor rule with...

In this paper, we develop a modified maximum likelihood (MML) estimator for the multiple linear regression model with underlying student t distribution. We obtain the closed form of the estimators, derive the asymptotic properties, and demonstrate that the MML estimator is more appropriate for...

This paper illustrates the usefulness of resampling based methods in the context of multiple (simultaneous) tests, with emphasis on econometric applications. Economic theory often suggests joint (or simultaneous) hypotheses on econometric models; consequently, the problem of evaluating joint...

The technique of Monte Carlo (MC) tests [Dwass (1957), Barnard (1963)] provides an attractive method of building exact tests from statistics whose finite sample distribution is intractable but can be simulated (provided it does not involve nuisance parameters). We extend this method in two ways:...

A short-run demand model for residential electricity is estimated for households served by the Rural Electric Cooperatives using data from the 1997 Family Income and Expenditure Survey. The results support earlier findings that the short-run residential demand for electricity is income and price...

The integration of fuzzy logic systems and neural networks in data driven nonlinear modeling applications has generally been limited to functions based upon the multiplicative fuzzy implication rule for theoretical and computational reasons. We derive a universal approximation result for the...