Research

Behavioral adjustments to mitigate increasing risk of STIs can increase or decrease the likelihood of pregnancy. This paper measures the effects of the arrival and spread of AIDS across U.S. cities in the 1980s and 1990s on births and abortions. I show that the AIDS epidemic increased the birth rate by 0.55 percent and the abortion rate by 1.77 percent. I find support for two underlying mechanisms to explain the increase in pregnancies. Some women opted into monogamous partnerships in response to the AIDS epidemic, with a corresponding increase in the marriage rate and improvement in infant health. Others switched from prescription contraceptive methods to condoms. These behavioral changes lowered the incidence of other sexually transmitted infections, but increased both planned and unplanned pregnancies.

In the 2022 U.S. midterm elections, Democratic candidates lost fewer than predicted seats and stymied an expected red wave. News coverage and polling data represent this surprise Democratic success as a result of voters’ response to the Supreme Court overturning Roe v. Wade. Using county-level vote data, we find that the decrease in Republican vote margin in 2022 can be explained by demographic and economic factors. However, relative to the national average, the Republican vote margin decreased by 4.8 percentage points more in states with abortion-related ballot measures. Our results indicate that abortion ballot measures have effects on election outcomes of a magnitude large enough to determine competitive races.

We empirically investigate the impact of COVID-19 shutdowns on domestic violence using incident-level data on both domestic-related calls for service and crime reports of domestic violence assaults from the 18 major US police departments for which both types of records are available. Although we confirm prior reports of an increase in domestic calls for service at the start of the pandemic, we find that the increase preceded mandatory shutdowns, and there was an incremental decline following the government imposition of restrictions. We also find no evidence that domestic violence crimes increased. Rather, police reports of domestic violence assaults declined significantly during the initial shutdown period. There was no significant change in intimate partner homicides during shutdown months and victimization survey reports of intimate partner violence were lower. Our results fail to support claims that shutdowns increased domestic violence and suggest caution before drawing inference or basing policy solely on data from calls to police.

From the onset of the COVID-19 pandemic, policymakers and news reports warned that restrictions on individual mobility and commercial activity could lead to a surge in domestic violence (DV). Some initial studies found evidence of greater DV incidence during the pandemic, but findings were inconsistent across locations and DV measures. This paper focuses on a single major city, Los Angeles (LA), to study the impact of the initial pandemic shutdown. We use three DV measures from police data (911 calls, crime incidents and arrests) as well as two measures from non-police administrative sources (the county DV hotline and hospital records). We find an increase in DV calls to the police and calls to the hotline. However, we find that DV crimes recorded by police and hospital visits by female assault (and DV) victims decreased significantly, suggesting that the increase in calls came from higher reporting rates. The decrease in DV crimes is not attributable to reductions in policing intensity, as the arrest rate for DV crimes was higher during the shutdown. We conclude that the initial LA shutdown increased the rates at which people contacted authorities about DV, but decreased the overall incidence of physical DV crimes in the population.

This chapter examines the impact of COVID-19 shutdowns on domestic violence (DV) in the United States. Despite widespread concerns that pandemic shutdowns could increase DV, initial studies found mixed evidence that varied across data sources and locations. We review the evolving literature on the effects of the pandemic and highlight results from studies that examine multiple measures of DV across a common set of large cities. These studies show that the conflicting early results are due to opposite effects of pandemic shutdowns on two measures of DV in police data: an increase in domestic violence 911 calls and a decrease in DV crime reports. In theory, this divergence can come from either higher DV reporting rates, possibly because of additional media attention to DV and greater third-party calling, or from lower policing intensity for DV crimes. Prior evidence from police data and other sources supports the conclusion that the increase in calls came from greater reporting, while the incidence of criminal DV decreased. Finally, we present new evidence drawing on police and hospitals records from across the state of California to show that DV crimes and hospital emergency department (ED) visits were both lower during pandemic shutdowns.

This paper describes a new, low-cost approach to increasing content relevance and student engagement in Principles of Microeconomics by organizing the class around a cohesive theme. While continuing to teach students standard introductory material, we use supplementary readings, assignments, and examples throughout the semester that are related to a specific topic. Instructors at the University of Richmond piloted themed sections for Principles of Microeconomics in Fall 2022 and Spring 2023 on the topics of crime, inequality, dating, and globalization. In this paper, we provide an overview of our approach, including the institutional environment in which it was implemented, examples of how we related the themes to economic principles, and instructor and student perceptions of the benefits and difficulties of themed classes. We also provide a general framework and guidance for other instructors to use when implementing themes.

Can abortion ballot measures generate electoral spillover effects, and for whom? Abortion ballot measures have become an important aspect of US elections, with 16 states voting on measures since the 2022 Supreme Court ruling in Dobbs v. Jackson Women’s Health. Using nationwide electoral returns and survey data, we study the effects of abortion ballot measures on election outcomes in 2022 and 2024. We find no evidence that abortion ballot measures increase overall turnout. Results show that abortion ballot measures decreased the Republican vote margin in US House elections by 4.9 percentage points in 2022 but increased the margin by 4.5 percentage points in 2024. The increase in Republican votes in 2024 can be explained by a vote separation mechanism: ballot measures allow voters to separate the specific ballot issue from their choice of partisan candidate.