This paper uses the rollout of the first Community Health Centers (CHCs) to study the longer-term health effects of increasing access to primary care. Within ten years, CHCs are associated with a reduction in age-adjusted mortality rates of 2 percent among those 50 and older. The implied 7 to 13...

The canonical difference-in-differences (DD) model contains two time periods, “pre” and “post”, and two groups, “treatment” and “control”. Most DD applications, however, exploit variation across groups of units that receive treatment at different times. This paper derives an...

This paper evaluates the effects of the War on Poverty's Legal Services Program (LSP) on family structure and welfare participation. LSPs provided subsidized legal assistance to poor communities, focusing on divorce and welfare access. We use a difference-in-differences research design based on...

In 1974, Supplemental Security Income (SSI) federalized cash welfare programs for the aged, blind, and disabled, imposing a national minimum benefit. Because of pre-existing variation in generosity, SSI differentially raised payment levels in states below its benefit floor, but had no effect in...

This paper exploits the original introduction of Medicaid (1966-1970) and the federal mandate that states cover all cash welfare recipients to estimate the effect of childhood Medicaid eligibility on adult health, labor supply, program participation, and income. Cohorts born closer to Medicaid...

Changes in childbearing affect almost every aspect of human existence. Over the last fifty years, American women have experienced dramatic changes in the ease and convenience of timing and limiting childbearing, ranging from the introduction of the birth control pill and the legalization of...

Almost 50 years after domestic U.S. family planning programs began, their effects on childbearing remain controversial. Using the county-level roll-out of these programs from 1964 to 1973, this paper reevaluates their shorter- and longer-term effects on U.S. fertility rates. I find that the...

We describe changes over time in inequality in postsecondary education using nearly seventy years of data from the U.S. Census and the 1979 and 1997 National Longitudinal Surveys of Youth. We find growing gaps between children from high- and low-income families in college entry, persistence, and...

Decades of research on the U.S. gender gap in wages describes its correlates, but little is known about why women changed their career paths in the 1960s and 1970s. This paper explores the role of "the Pill" in altering women's human capital investments and its ultimate implications for...

Dramatic fertility swings over the last 100 years have been the subject of large literatures in demography and economics. Recent research has claimed that the post-1960 fertility decline is exceptional enough to constitute a "Second Demographic Transition." The empirical case for a Second...