This paper discusses two issues in the relationship between inequality and economic growth: the data and the econometrics. We first review the income inequality data set of Deininger and Squire (D&S), which, we argue, fails to provide either adequate or accurate coverage, whether through time or...

This paper summarizes a comprehensive revision and update of UTIP's work on the inequality of pay and incomes around the world, covering the years 1963 to 2008. The new UTIP-UNIDO data set of industrial pay inequality has 4054 country-year observations over for 167 countries, while the updated...