The paper explains the fall in the NAIRU from more than six pecent in the '80s to below five percent in the '90s. There is a high degree of persistence in unemployment rates across U.S. states over longer time spans. We use cross-sectional and time-series variations in U.S. regional unemployment...

This paper explains why so many real life phenomena generate regression towards the mean or mean reversion results. We start our analysis by revisiting Galton's original paper on the height of children and the height of parents. We then show that the regression towards the mean result also holds...

We compare the distributions of U.S. state per worker output and state per capita personal income, and document their changes over time. Our analysis reveals important differences between the two distributions. Most notably, we find geographical differences are less important in understanding...