The income of the self-employed is often assumed to be understated in economic statistics. Controversy exists about the best method for estimating the extent of under-reporting and about the resulting measures of the size of the underground economy. This paper refines a method developed by...

This paper investigates the trend of the wage inequality and the metropolitan wage premium in the United States during the 1980s. Two distinct sets of literature documented that the wage inequality between skilled and unskilled workers and the metropolitan wage premium have risen significantly...