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...

In this paper, we try to build an efficient portfolio among four possible portfolios based on the some 31 Casablanca listed shares. Our analysis concerns the risk which arises from the Markowitz mean-variance approach. Our work method will be implemented as following: first of all, we will test...

One of the most important instruments of economic policy of the opened countries is the exchange rate. It is considered both a mean of monetary regulation and a tool of outside competitiveness. Morocco plans to adopt the floating exchange rate regime, in the end of 2009. Indeed, the question...

The management of financial risks, which is a branch of financial theory, is defined as a process that begins with risk factors identification, continues with measurement of risk and concludes with the coverage of that risk. This work focuses on the second phase of management process, namely the...

Over the past four decades, many events and economic and extra-economic changes questioned the relevance and validity of structural econometric models. Currently, all models are developed for a stationary process. However, this hypothesis is not usually verified. This article attempts to...

A wide range of tests for heteroskedasticity have been proposed in the econometric and statistics literatures. Although a few exact homoskedasticity tests are available, the commonly employed procedures are quite generally based on asymptotic approximations which may not provide good size...

This study probes nexus between electricity consumption and GDP for the electricity community of Togo and Benin using ARDL bounds testing approach of cointegration. Long-run equilibrium has been established among these variables for Benin. The study further establishes long- and short-run...