Template-Type: ReDIF-Paper 1.0 Author-Name: Dilip Mookherjee Author-X-Name-First: Dilip Author-X-Name-Last: Mookherjee Author-Email: dilipm@bu.edu Author-Workplace-Name: Department of Economics, Boston University Author-Name: Debraj Ray Author-X-Name-First: Debraj Author-X-Name-Last: Ray Author-Email: debraj.ray@nyu.edu Author-Workplace-Name: New York University and Instituto de AnŽalisis EconŽomico (CSIC) Title: Occupational Diversity and Endogenous Inequality Abstract: A traditional view of markets is that they equalize wealth across individuals. A more recent literature suggests that markets are inherently disequalizing. A third viewpoint argues that initial history is crucial in determining whether inequalities persist or not. By constructing a theory of equilibrium investment allocation between human capital and financial assets in the presence of borrowing constraints, we address these views in a unified way. Two attributes of occupational diversity turn out to be central to our understanding: span, the range of training costs across occupations, and richness, the variety of different training costs contained within the span. The former is used to generate a necessary and sufficient condition for markets to be disequalizing, while the latter is shown to be directly connected to the question of history-dependence. Length:37 pages Creation-Date:2005-06 Revision-Date: Publication-Status: File-URL: http://www.bu.edu/econ/workingpapers/papers/Dilip%20Mookherjee/wp2005/05span05.pdf File-Format: Application/pdf File-Function: Number: WP2005-022 Classification-JEL: Keywords: Handle: RePEc:bos:wpaper:WP2005-022