High nonresponse rates have become a rule in survey sampling. In panel surveys there occur additional sample losses due to panel attrition, which are thought to worsen the bias resulting from initial nonresponse. However, under certain conditions an initial wave nonresponse bias may vanish in...

I employ MM-estimation to investigate the external validity of the declining matching between concurrent revenues and expenses found in Srivastava (2014). Srivastava (2014) finds lower matching for successive listing cohorts. However, the low matching values in that study indicate the potential...

This paper examines the evolution of the returns to education in Portugal over the 1980s andearly 1990s. The main findings indicate that the returns to education have increased,particularly after joining the European Union in 1986. Since this occurred along with anincrease in the level of...

Prior literature on corporate governance and performance provides mixed evidence on the impact of various corporate governance measures on performance indicators. However, most of literatures adopt the Ordinary Least Square (OLS). This method is based on the central tendency, which may not...