There is an active debate about how to regulate electronic cigarettes, due to uncertainty about their health effects and whether they are primarily a quit aid or a gateway drug for combustible cigarettes. We model optimal e-cigarette regulation and estimate key parameters. Using tax changes and...

There is an active debate about how to regulate electronic cigarettes, due to uncertainty about their health effects and whether they are primarily a quit aid or a gateway drug for combustible cigarettes. We model optimal e-cigarette regulation and estimate key parameters. Using tax changes and...

Governments often provide inconsistent guidance to the public. Does inconsistency affect how much people believe the latest recommendations? Using an incentivized online experiment with 1,900 US respondents in early April 2020, we present all participants with the latest official projection...

We study the U.S. rollout of eligibility expansions in the Supplemental Nutrition Assistance Program. Using administrative data from the U.S. Department of Agriculture, we show that expanding eligibility raises enrollment among the inframarginal (always-eligible) population. We use an online...

Transfer receipt is voluntary and costly, generating “self-targeting” through selective take-up among the eligible. How does self-targeting select on need, and what are its policy implications? We show self-targeting is advantageous in eight U.S. transfers: On average, recipients have lower...