We propose new tests for panel cointegration by extending the panel unit root tests of Choi [2001] and Maddala and Wu [1999] to the panel cointegration case. The tests are flexible, intuitively appealing and relatively easy to compute. We investigate the finite sample behavior in a simulation study. Several variants of the tests compare favorably in terms of both size and power with other widel...

The role of financial institutions and corporate governance in the conduct and performance of industrial firms, especially in the area of technological innovation and international competition has been hotly debated in the recent past. The results presented here are a contribution to the empirical evidence on the behavior of individual firms that exist in somewhat different institutional enviro...

This paper analyses the effects of work-related training on worker productivity. To identify the causal effects from training, we combine a field experiment that randomly assigns workers to treatment and control groups with panel data on individual worker performance before and after training. We find that participation in the training programme leads to a 10 percent increase in performance. Mo...

This paper investigates the impact of governance on economic reform and performance in transition economies. The applied concept of governance allows the identification of institutional impediments to transition in a comparative way. The empirical analysis of the concept confirms the view that governance matters. The panel data set constructed for this study allows to identify three independent...

Many earlier development finance studies have attempted to assess the relationship between financial inclusion and economic growth. However, findings of these vary from economy region due various social factors. We, therefore, deemed it pertinent examine growth while further identifying direction causality two variables in twenty-six (26) Sub-Saharan African (SSA) economies using annual seconda...

Since the 1970s nearly all US-states have introduced a form of joint custody after divorce. We analyze the causal effect of this custody law reform on the incidence of marriage and divorce. Our identification strategy exploits the different timing of reform across states and the control group of divorcing couples without minors. Estimations based on state panel data suggest that the introductio...

Residual Wage Inequality in Urban China, 1995-2007 We use three waves of urban household survey data from 1995 to 2007 to investigate the trends of residual inequality and its determinants. First, we describe the change of overall and residual wage inequality over time. One important new pattern is that the rise in both the overall and residual inequality mainly happened at the upper half of th...

INTRODUCTION Cutaneous adverse drug reactions (cADRs) can cause significant morbidity and distress in patients, especially in the HIV-infected population on antiretroviral therapy. Adverse drug reaction monitoring and ascertaining causality in resource-limited settings remain serious challenges. This study was conducted to evaluate causality and measure the incidence of cADRs in HIV-infected pa...