Volunteering plays a prominent role in the charitable provision of goods and services, yet we know relatively little about why people engage in such prosocial acts. The list of possible motivations is long, but recent research has focused on altruism, reputational concerns, and material...

The U.S. Supreme Court decision in Dobbs v. Jackson Women's Health Organization sparked the most profound transformation of the landscape of abortion access in 50 years. We provide the first estimates of the effects of this decision on fertility using a pre-registered synthetic...

Market productivity is often greater, and leisure and other household activities more enjoyable, when people perform them simultaneously. Beyond pointing out the positive externalities of synchronicity, economists have not attempted to identify exogenous causes that affect timing. We develop a...

Proposition 209, enacted in California in 1996 and made effective the following year, ended state affirmative action programs not only in education, but also for public employment and government contracting. This paper uses CPS data and triple difference techniques to take advantage of the...

Local news offers a unique look not only at customer preferences but also at the strategic response of firms to these preferences. This paper uses a combination of ratings data and newly gathered information on television stations in 25 U.S. markets to examine the decisions of competing firms...

Testosterone, which induces sexual differentiation of the male fetus, is believed to transfer from males to their littermates in placental mammals. Among humans, individuals with a male twin have been found to exhibit greater masculinization of sexually dimorphic attributes relative to those...

We compile data on the locations of abortion providers and enforcement of parental involvement laws to document dramatic increases in the distances minors must travel if they wish to obtain an abortion without involving a parent or judge. Between 1992 – the year the U.S. Supreme Court...

An expansive empirical literature estimates the causal effects of policies governing young women's confidential and legal access to contraception and abortion. I present a new review of changes in the historical policy environment in the United States that serve as the foundation of this work. I...

I implement event study and difference-in-differences research designs to measure the causal effects of mandatory waiting periods for abortions, distinguishing between "one- trip" waiting periods that allow counseling and information to be provided remotely and "two-trip" waiting periods that...

I compile and disseminate novel panel data sets measuring county-level travel distances to abortion facilities and resident abortion rates. Using these data and exploiting temporal and spatial variation in distances, I implement difference-in-difference research designs measuring the causal...