We highlight the fact that the Sargan-Hansen test for GMM estimators applied to panel data is a joint test of valid orthogonality conditions and coefficient stability over time. A possible reason why the null hypothesis of valid orthogonality conditions is rejected is therefore that the slope...

How does globalization affect inter-occupational wage inequality within countries? This paper empirically examines this issue by focusing on two dimensions of globalization, openness to trade and openness to capital, using a relatively new dataset on occupational wages. Estimates from dynamic...

This paper presents unit-root test results for real exchange rates in ten Central and Eastern European transition countries during 1993:01-2003:12. Because of the shift from controlled to market economies and the accompanying crises, failed policy regimes and changes in exchange rate regimes,...

Stock return predictability is a central issue in empirical finance. Yet no comprehensive study of international data has been performed to test the predictive ability of lagged explanatory variables. In fact, most stylized facts are based on U.S. stock-market data. In this paper, I test for...

This paper analyzes econometric inference in predictive regressions in a panel data setting. In a traditional time-series framework, estimation and testing are often made difficult by the endogeneity and near persistence of many forecasting variables; tests of whether the dividend-price ratio...

This paper provides panel data evidence on trade liberalization and wage inequality in Bangladesh. Using several standard econometric models, wage equations for skilled and unskilled workers in the formal manufacturing sector are estimated for the 1975-2002 period. The results, particularly the...