In this paper, we propose finite and large sample likelihood based test procedures for possibly non-linear hypotheses on the coefficients of SURE systems. Two complementary approaches are described. First, we propose an exact Monte Carlo bounds test based on the standard likelihood ratio...

Models used for natural resources prices usually preclude the possibility of large changes (jumps) resulting from discrete, unexpected events. To test for the presence of jumps and ARCH effects, we propose to use bounds and bootstrap test techniques, thus solving the unidentified nuisance...

This paper examines the relationship between increasing budget deficits and tax rate for Benin, Côte d'Ivoire, Niger and Togo. This investigation is based on Johansen cointegration approach and Granger causality tests. The findings suggest firstly that these variables are not cointegrated for...