The impact of participation in Head Start is investigated using a national sample of children. Comparisons are drawn between siblings to control for selection. Head Start is associated with large and significant gains in test scores among both whites and African-Americans. However, among African-Americans, these gains are quickly lost. Head Start significantly reduces the probability that a white child will repeat a grade, but it has no effect on grade repetition among African-American children. Both whites and African-Americans who attend Head Start, or other preschools, gain greater access to preventive health services.

This paper examines the impact of collective-bargaining legislation on dispute costs and wages using a panel of Canadian public-sector contracts. Our results suggest that policymakers designing collective-bargaining legislation face a trade-off between reducing dispute costs and increasing wages. Dispute costs are lower under compulsory arbitration than under the right to strike or when no collective-bargaining legislation exists. Hence, a switch to compulsory arbitration could potentially make both the union and the employer better off by reducing dispute costs. However, we find that wages are higher under compulsory arbitration than under other legal structures.

The variance of arbitrated wage settlements is significantly lower than the variance of negotiated wage settlements in a sample of teachers' contracts, even when possible selection of contracts into arbitration is accounted for. This result is consistent with the hypothesis that arbitrated settlements do not incorporate all of the information that is reflected in negotiated settlements.

A standard efficient-contracts model of employment determination in a unionized labor market is contrasted with a naive model of labor supply and demand that allows for the possibility of monopsony in the market for public school teachers. The standard model is consistent with the data and suggests that employment contracts are strongly efficient, but a more surprising result is that the simple supply/demand model is not rejected by the data either. Estimates of the latter suggest that the demand for teachers is inelastic and that the supply curve is slightly upward sloping, rather than perfectly elastic, at the union wage.

A key question for health care reform in the United States is whether expanded health insurance eligibility will lead to improvements in health outcomes. We address this question in the context of the dramatic changes in Medicaid eligibility for pregnant women that took place between 1979 and 1992. We build a detailed simulation model of each state's Medicaid policy during this era and use this model to estimate (1) the effect of changes in the rules on the fraction of women eligible for Medicaid coverage in the event of pregnancy and (2) the effect of Medicaid eligibility changes on birth outcomes in aggregate Vital Statistics data. We have three main findings. First, the changes did dramatically increase the Medicaid eligibility of pregnant women, but did so at quite differential rates across the states. Second, the changes lowered the incidence of infant mortality and low birth weight; we estimate that the 30-percentage-point increase in eligibility among 15-44-year-old women was associated with a decrease in infant mortality of 8.5 percent. Third, earlier, targeted changes in Medicaid eligibility, which were restricted to specific low-income groups, had much larger effects on birth out-comes than broader expansions of eligibility to women with higher income levels. We suggest that the source of this difference is the much lower take-up of Medicaid coverage by individuals who became eligible under the broader eligibility changes. Even the targeted changes cost the Medicaid program $840,000 per infant life saved, however, raising important issues of cost effectiveness.

There are many possible pathways between parental education, income, and health, and between child health and education, but only some of them have been explored in the literature. This essay focuses on links between parental socioeconomic status (as measured by education, income, occupation, or in some cases area of residence) and child health, and between child health and adult education or income. Specifically, I ask two questions: What is the evidence regarding whether parental socioeconomic status affects child health? And, what is the evidence relating child health to future educational and labor market outcomes? I show that there is now strong evidence of both links, suggesting that health could play a role in the intergenerational transmission of economic status.