Research

Work in progress

The Role of Intellectual Property in Tax Planning (with Katarzyna Bilicka and İrem Güçeri).

Presented at the NTA Annual Conference (November 2023) and at Georgetown's Tax Law and Public Finance Workshop (April 2024).

Family Responses to the College Financial Aid Implicit Income Tax (with Joe Gray-Hancuch and Nick Gebbia).

Slides presented at the OTA Research Conference (September 2023).

Peer-reviewed publications

Non-Monetary Sanctions as Tax Enforcement Tools: Evaluating California’s Top 500 Program (with Chad Angaretis, Brian Galle, and Allen Prohofsky). Journal of Policy Analysis and Management. DOI link. 

Abstract: Many U.S. states and countries around the world use non-monetary sanctions, including public disclosure, license suspension, and withholding of other government-provided benefits or privileges, to encourage tax compliance. Little is known about the effectiveness of these programs. Using administrative tax microdata from California's “Top 500” program, we study whether notices warning of the imminent publication of a taxpayer's personal information and potential license suspension affect payment and other compliance outcomes. Exploiting variation over time in the cutoff balance for program eligibility, we find evidence of strong positive compliance responses to the program. We also develop estimates of the long-run revenue and social-welfare effects of the program. Together, these results suggest that non-monetary sanctions can be efficient tax enforcement tools, at least among the relatively high-income population we study.


Citizenship and taxes. International Tax and Public Finance 31, 404-453 (2024). DOI link.

Abstract: The U.S. tax system applies to its citizens’ worldwide incomes and estates, whether those citizens live in the U.S. or abroad. Fully escaping the U.S. tax system requires renouncing U.S. citizenship, and in recent years a growing number have done so. Using administrative tax microdata, I provide new descriptive information about the population of individuals who have renounced U.S. citizenship. The typical renouncer had long lived abroad, was slightly wealthier than the typical American, and reported no or little net U.S. tax liability prior to their renunciation. Combined with information on the foreign jurisdictions where renouncers reside, the evidence suggests that most recent renunciations are a result of increasing compliance costs of maintaining U.S. citizenship while living abroad, and not a response to U.S. tax liability.


Incentive Effects of the IRS’ Passport Certification and Revocation Process (with Alex Ruda, Joel Slemrod, and Alex Turk). Journal of Public Economics, April 2022, Volume 208, #104625. DOI link.

Abstract: Traditional penalties for tax noncompliance are financial, but many jurisdictions now also use non-monetary tools, including collateral sanctions that deny access to some government-provided service. To learn about the effectiveness of one such penalty, we examine a recent U.S. policy restricting passport access for taxpayers with substantial tax debt, known as “certification.” We take advantage of a field experiment during the policy rollout, and find small but positive effects on taxpayer compliance of the certification notice sent to eligible taxpayers. We then study a subset of certified taxpayers who were denied a passport-related request, and find an immediate and strong positive effect of the denial on compliance.