We use difference-in-differences models and individual-level data from the national and state Youth Risk Behavior Surveillance System (YRBSS) from 2005 to 2015 to examine the effects of e-cigarette Minimum Legal Sale Age (MLSA) laws on youth cigarette smoking, alcohol consumption, and marijuana...

Hospitals today are posed with many requirements arising from government regulations and financial incentives to improve patient experiential quality. An administrative challenge thus results from hospital complexity, which can circumvent efforts to enhance experiential quality. This study...

We use the universe of birth records in the United States from 2013 to 2018 to examine the effect of e-cigarette tax rates on pre-pregnancy smoking and prenatal smoking. We study these questions using two-way fixed effects models and pregnancy fixed effects models. We show that e-cigarette taxes...

Battery swapping enables drivers of electric vehicles to exchange their drained batteries for recharged batteries at swapping stations. The business model for a swapping station involves several important decisions. For example, how many charging devices (fast devices vs. normal devices) and...

The rising popularity and utilization of the Internet presents unprecedented opportunities for policy evaluation. Using data provided by Google Trends, I estimate the impacts of medical and recreational marijuana legalization on online information seeking. Search terms entered into Google Trends...

Over the past decade, rising youth use of e-cigarettes and other electronic nicotine delivery systems (ENDS) has prompted aggressive regulation by state and local governments. Between 2010 and 2019, ten states and two large counties adopted ENDS taxes. Applying a continuous treatment...

Electric vehicles (EVs) are superior to internal combustion engine-powered vehicles (ICVs) in limiting oil dependency and reducing carbon emissions. Governments worldwide have enacted various subsidy policies to promote EV adoption. In this paper, we focus on answering two related key...

Over the past decade, rising youth use of e-cigarettes and other electronic nicotine delivery systems (ENDS) has prompted aggressive regulation by state and local governments. Between 2010 and 2019, ten states and two large counties adopted ENDS taxes. Applying a continuous treatment...

We use the universe of birth records in the United States from 2013 to 2017 to examine the effect of e-cigarette taxes on pre-pregnancy smoking, prenatal smoking, and birth outcomes (birth weight, gestational length, and Apgar 5 score). We apply a differences-in-differences model to study these...