This article contributes to the empirical literature of Okun's law in three respects. First, in contrast to the limited data used in the existing studies, we employ two extensive (across countries and across states, i.e. within a country) panel data sets to investigate the validity of Okun's...

In contrast to the conventional conditional mean approaches, this study uses quantile regression techniques to present some new statistical evidence on the links between inflation uncertainty and the level of inflation with cross-sectional data from 90 countries during the period 1961 to 2006....