In this paper, we show how a differentiated tax treatment of corporate losses and corporate profits induces the firm to behave in a very specific risk-averse manner.

In the analysis of tax reform, when equity is traded off against efficiency, the measurement of the latter requires us to know how tax- induced price changes affect quantities supplied and demanded. In this paper, we present various econometric procedures for estimating how taxes affect demand.

In this paper we assess, via Monte Carlo Simulations, the effects of some seasonal adjustment linear filters on cointegrating regressions. We find that the use of filters has adverse consequences in terms of the power of the Augmented Dickey and Fuller and Phillips and Perron tests of cointegration.

We argue that Islamic principles, in particular the avoidance of ribā and gharar should be applied with respect to real economic value rather than to monetary value in terms of conventional currency. In order to reconcile monetary value with economic value, we propose a reference currency...

We describe in this paper a method allowing to order submodels in linear regression. A real function is attached to each submodel, allowing to graphically compare and order them. Our procedure defines an objective function depending on two factors (lack of fit and multicolinearity) with the...

We show that, in many circumstances, the size distortion of a bootstrap P value for a test will be one whole order of magnitude smaller than that of the corresponding asymptotic P value. We also show that, at least in the parametric case, the magnitude of the distorsion will depend on the shape...