This paper studies the changes in earnings inequality. It also examines the causes and consequences of this changes.

Identification of the strength of human capital externalities at the aggregate level is still not fully understood. The existing method may yield positive or negative externalities even if wages reflect marginal social products. We propose an approach that yields positive average human capital...

This study examines changes in earnings inequality for full-time employees in Australia between 1982 and 1994-95 using individual-level data from the ABS Income Distribution Survey. It present measures of changes in earnings inequality for disaggregated workforce groups. It also provides...

We combine growth theory with US Census data on individual schooling and wages to estimate the aggregate return to human capital and human capital externalities in cities. Our estimates imply that a one year increase in average schooling in cities increases their aggregate labour productivity by...