Instrumental Variables (IV) estimates tend to be biased in the same direction as Ordinary Least Squares (OLS) in finite samples if the instruments are weak. To address this problem we propose a new IV estimator which we call Split Sample Instrumental Variables (SSIV). SSIV works as follows: we...

The wage structure in the U.S. public sector responded sluggishly to substantial changes in private sector wages during the 1970s and 1980s. Despite a large expansion in the college/high school wage differential during the 1980s in the private sector, the public sector college wage premium...

This paper has three goals; first, to place U.S. job growth in international perspective by exploring cross-country differences in employment and population growth. This section finds that the U.S. has managed to absorb added workers -- especially female workers -- into employment at a greater...

This paper compares self-reported changes in families' financial status to actual changes based on annual time-series data calculated from the PSID. The results indicate that the Consumer Price Index does a reasonably accurate job reconciling self-reported changes in financial status with...

The method of instrumental variables was first used in the 1920s to estimate supply and demand elasticities, and later used to correct for measurement error in single-equation models. Recently, instrumental variables have been widely used to reduce bias from omitted variables in estimates of...

Although schools across the country are investing heavily in computers in the classroom, there is surprisingly little evidence that they actually improve student achievement. In this paper we present results from a randomized study of a well-defined use of computers in schools: a popular...

This paper re-examines the effect of the 1992 New Jersey minimum wage increase on employment in the fast-food industry. We begin by analyzing employment trends using a comprehensive new data set derived from the Bureau of Labor Statistics's (BLS's) ES-202 data file. Both a longitudinal sample...

This paper reports the results of surveys of specialists in labor economics and public economics at 40 leading research universities in the United States. Respondents provided opinions of policy proposals; quantitative best estimates and 95% confidence intervals for economic parameters; answers...

This study provides the first nation-wide analysis of the labor market implications of occupational licensing for the U.S. labor market, using data from a specially designed Gallup survey. We find that in 2006, 29 percent of the workforce was required to hold an occupational license from a...

Between 1996 and 1998 California and Texas eliminated the use of affirmative action in college and university admissions. At the states' elite public universities admission rates of black and Hispanic students fell by 30-50 percent and minority representation in the entering freshman classes...