Contrary to the original intention of no‐fault workers’ compensation laws, employers deny liability for a substantial fraction of on‐the‐job injuries. We develop and estimate a simple structural model that explains the high rate of litigation as a consequence of asymmetric information. We estimate the model using data for a large sample of back injuries in Minnesota. Simulations under the counterfactual assumption that all denied workers pursue their claims suggest that the strategic incentive accounts for 30%–40% of observed liability disputes.

Despite intensive scrutiny, the effects of Medicaid expansions on the health insurance status of low-income children remain controversial. We reexamine the effects of the two largest federally mandated expansions which offered Medicaid coverage to low-income children in specific age ranges and birth cohorts. We use a regression discontinuity approach, comparing Medicaid enrollment, private insurance coverage, and overall insurance coverage on either side of the age limits of the laws. We conclude that the modest impacts of the expansions on health insurance coverage arose because of very low takeup rates of the newly available coverage, rather than from crowdout of private insurance coverage.

The Changing Incidence and Severity of Poverty Spells among Female-Headed Families by David Card and Rebecca M. Blank. Published in volume 98, issue 2, pages 387-91 of American Economic Review, May 2008

Time-Series Minimum-Wage Studies: A Meta-analysis Author(s): David Card and Alan B. Krueger Reviewed work(s): Source: The American Economic Review, Vol. 85, No. 2, Papers and Proceedings of the Hundredth and Seventh Annual Meeting of the American Economic Association Washington, DC, January 6-8, 1995 (May, 1995), pp. 238-243 Published by: American Economic Association Stable URL: http://www.jstor.org/stable/2117925 . Accessed: 04/11/2011 15:46

Minimum Wages and Employment: A Case Study of the Fast-Food Industry in New Jersey and Pennsylvania: Reply by David Card and Alan B. Krueger. Published in volume 90, issue 5, pages 1397-1420 of American Economic Review, December 2000

This paper presents new evidence on the effects of immigration based on changes in the distributions of wages in 24 major [U.S.] cities during the 1980s....We...concentrate on measuring the effects of immigration at the lower tail of the wage distribution. In particular we ask whether recent declines in the real earnings of the least-skilled workers in the U.S. economy are related to immigration. Our empirical analysis reveals large differences across cities in the relative growth rates of wages for low- and high-paid workers. Nevertheless these differences bear little or no relation to the size of immigrant inflows. (EXCERPT)

We revisit the estimation of industry wage differentials using linked employer-employee data. Cross-sectional industry differences overstate pay premiums due to unmeasured heterogeneity. Estimates based on models with person and industry effects understate true premiums: workers who switch to a higher-premium industry typically move from higher-paying firms in their origin industry to lower-paying firms in their destination (and vice versa). The corrected standard deviation of log wage effects is 0.122 across narrowly defined industries and is similar at higher levels of aggregation. Higher-skilled workers sort to higher-pay industries. Premiums and worker sorting are more variable in cities with higher-wage firms and higher-skilled workers.

School quality affects upward mobility in educational attainment. This conclusion comes from an analysis of families with coresident teenage children in the 1940 census. We study parents in the bottom quartile of the education distribution and define “upward mobility” as a generational move up the educational ladder to the top three quartiles of the child’s cohort. At the state level, upward mobility is strongly tied to teacher wages. This relationship holds when we narrow our focus to families on adjacent sides of state borders in the South, where state minimum salary laws created sharp teacher-wage differences between otherwise similar counties.

This paper estimates the effects of school quality--measured by the pupil/teacher ratio, average term length, and relative teacher pay--on the rate of return to education for men born between 1920 and 1949. Using earnings data from the 1980 census, the authors find that men who were educated in states with higher-quality schools have a higher return to additional years of schooling. Rates of return are also higher for individuals from states with better-educated teachers and with a higher fraction of female teachers. Holding constant school quality measures, however, the authors find no evidence that parental income or education affects average state-level rates of return.