This paper makes two contributions to the empirical literature on agglomeration economies. First, the paper uses a unique and rich database in conjunction with mapping software to measure the geographic extent of agglomerative externalities. Previous papers have been forced to assume that...

This paper establishes the existence of a previously overlooked relationship between agglomeration and hours worked. Among non-professionals, hours worked decrease with the density of workers in the same occupation. Among professionals, a positive relationship is found. This relationship is...

October 2005 (Revised from March 2003/February 2004). Our research examines the effect of interdependence on estimation and interpretation of earnings/labor supply equations. We consider the cases of (1) a positive spillover from others’ labor supplied and (2) a need for conformity with...

March 2003 (Revised from January 2003). We examine the incidence, form, and research consequences of measurement error in measure of fatal injury risk in U.S. workplaces using both BLS and NIOSH data. We find evidence of substantial measurement errors in the fatality risk researchers attach to...

November 2004 (Revised from April 2003). We estimate the incentive effects of income taxation in a life-cycle model of consumption and labor supply that relaxes the standard assumption of strong separability within periods. Our model permits identification of both within-period preference...

When an individual's health status is observable, but evolving over time, the key to maintaining a successful health insurance arrangement is to have the healthier members of the group cross-subsidize those who experience adverse health outcomes. We argue that impediments to worker mobility may...

The purpose of this study is to summarize and comment upon what we know about the determinants of both the level and trend in economic inequality over the past two decades, and to relate these findings to the progress of globalization in these nations. While the fruits of economic progress in...

The New York State Board of Regents and Commissioner of Education have identified a set of clear performance standards for students in New York State that matches the knowledge and skills they will need to function successfully as productive citizens in the 21st century. To match these...

September 2002 (Revised October 2002). Executive Summary: The current debate over cost-benefit concerns in agencies’ evaluations of government regulations is not so much whether to consider costs and benefits at all but rather what belongs in the estimated costs and benefits. Overlaid is the...

December 2002 (Revised from October 2002). Depression is a condition with various modes of treatment, including pharmacotherapy, psychotherapy, and some combination of each. The role of psychotherapy in the treatment of depression relative to the role of pharmacotherapy is not well understood,...