I am a PhD candidate in Economics at MIT. My research fields are health economics, public economics, and applied econometrics.
Before coming to MIT, I earned a BS in Economics (summa cum laude, Phi Beta Kappa) at the Wharton School at the University of Pennsylvania, a MPH at University College Cork as a Mitchell Scholar, and a MSc in Health Sciences at the University of York as a Marshall Scholar.
I am on the job market for 2025-2026.
Job Market Paper
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The Value of Pharmacies
Abstract
Retail pharmacies play a central role in the delivery of healthcare in the United States, yet little is known about their causal impact on patient behavior and health. Understanding their value is particularly urgent as all three major U.S. pharmacy chains—CVS, Walgreens, and Rite Aid—have recently announced large-scale store closures. This paper estimates the effects of retail pharmacy closures on prescription drug use and health outcomes. Using Medicare claims data from 2009 to 2017, I identify closures through an algorithm that clusters pharmacy identifiers based on shared patients and exploit these events in a two-way fixed effects difference-in-differences design. I find that pharmacy closures significantly reduce prescription drug use, particularly among racial and ethnic minorities and beneficiaries with disabilities. However, the reduction in prescription drug use is partially offset by substantial adaptation: many switch to mail-order pharmacies or obtain longer prescription durations following a closure. Finally, I find minimal effects on downstream health outcomes or healthcare utilization.
Selected Publications
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Dying or Lying? For-Profit Hospices and End-of-Life Care
Abstract
The Medicare hospice program is intended to provide palliative care to terminal patients, but patients with long stays in hospice are highly profitable, motivating concerns about overuse among the Alzheimer's and Dementia (ADRD) population in the rapidly growing for-profit sector. We provide the first causal estimates of the effect of for-profit hospice on patient spending using the entry of for-profit hospices over 20 years. We find hospice has saved money for Medicare by offsetting other expensive care among ADRD patients. As a result, policies limiting hospice use including revenue caps and antifraud lawsuits are distortionary and deter potentially cost-saving admissions.
- The Need for Federal Regulation of Marijuana Marketing
- Suicide Risk Behaviors Among Sexual Minority Adolescents in the United States, 2015
Working Papers
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Sedation and Selection: Restricting Antipsychotics in Nursing Homes
Abstract
Antipsychotics have been a major source of policy debate in nursing home care since the 1980s. On one hand, antipsychotics are generally considered medically inappropriate for elderly populations as they increase the risk of cerebrovascular mortality. On the other hand, antipsychotics make caring for elderly patients easier. Use in nursing homes is common; 30-40% of long-stay nursing home patients receive antipsychotics. In this project, I study the effects of a federal policy intended to reduce antipsychotic prescribing in nursing homes on patient health and nursing home strategy. Antipsychotic prescribing in nursing homes decreases, but this reduction appears to be driven by change in patient mix.
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Recreational Marijuana Dispensaries and Fatal Car Crashes
Abstract
Car crashes are a leading cause of death among younger Americans and have become a central concern in the US marijuana policy debate. I construct a novel dataset of marijuana dispensary openings, which I use to present new evidence on the effect of marijuana on traffic fatalities. My intra-state differences-in-differences approach both increases power relative to past analyses and eliminates the potential of time-varying state-level confounding. I find that marijuana dispensary openings increase the rate of fatal car crashes by approximately 5.7%. I use a series of tests to discern between two plausible mechanisms – increased traffic and increased impairment – and ultimately find that the effect is primarily driven by impairment.
Other Publications
- *The Use of Academic Research in Medical Cannabis Marketing: A Qualitative and Quantitative Review of Company Websites
- *Re: Observed Impact of Long-Term Consumption of Oral Cannabidiol on Liver Function in Healthy Adults and a Recent Announcement of a New Cannabidiol Safety Study
- Characterizing Help-Seeking Searches for Substance Use Treatment From Google Trends and Assessing Their Use for Infoveillance: Longitudinal Descriptive and Validation Statistical Analysis
- *What cannabis can learn from Covid: Hydroxychloroquine research suggests the next step for medical cannabis research
- Proportion of U.S. Clinics Offering LGBT-Tailored Mental Health Services Decreased Over Time: A Panel Study of the National Mental Health Services Survey
- Monitoring HIV testing and pre-exposure prophylaxis information seeking by combining digital and traditional data
- Impact of the Medicare Shared Savings Program on utilization of mental health and substance use services by eligibility and race/ethnicity
- Suicide-Related Internet Searches During the Early Stages of the COVID-19 Pandemic in the US
- *The Medical Marijuana Industry and the Use of Research as Marketing
- Physical and Sexual Violence Among Gay, Lesbian, Bisexual, and Questioning Adolescents
- Collateral Crises of Gun Preparation and the COVID-19 Pandemic: Infodemiology Study
- What Search Data Shows About Americans and Guns During the COVID-19 Crisis
- *Commentary on Furr‐Holden et al.: Drugs, class, and race—recent developments in the opioid epidemic call for urgent next steps
- News coverage of the E-cigarette, or Vaping, product use Associated Lung Injury (EVALI) outbreak and internet searches for vaping cessation
- Internet Searches for Unproven COVID-19 Therapies in the United States
- Responses to addiction help-seeking from Alexa, Siri, Google Assistant, Cortana, and Bixby intelligent virtual assistants
- *Medical marijuana laws, substance use treatment admissions and the ecological fallacy
- *Medical Cannabis Use
- *Medical marijuana, not miracle marijuana: some well‐publicized studies about medical marijuana do not pass a reality check
- Internet Searches for Sexual Harassment and Assault, Reporting, and Training Since the #MeToo Movement
- Trends in Internet Searches for Cannabidiol (CBD) in the United States
- Substance Use Among Lesbian, Gay, Bisexual, and Questioning Adolescents in the United States, 2015
- Medical Marijuana Users are More Likely to Use Prescription Drugs Medically and Nonmedically
- *Sex and orientation identity matter in the substance use behaviors of sexual minority adolescents in the United States
- Online Sales of Marijuana: An Unrecognized Public Health Dilemma
- Population-Level Analyses Cannot Tell Us Anything About Individual-Level Marijuana-Opioid Substitution
- Next generation media monitoring: Global coverage of electronic nicotine delivery systems (electronic cigarettes) on Bing, Google and Twitter, 2013-2018
- Don't quote me: reverse identification of research participants in social media studies
- They're heating up: Internet search query trends reveal significant public interest in heat-not-burn tobacco products
- *Google Searches for Cheap Cigarettes Spike at Tax Increases: Evidence from an Algorithm to Detect Spikes in Time Series Data
- *Assessing the Possibility of Leadership Education as Psychosocial-Based Problem Behavior Prevention for Adolescents: A Review of the Literature
- *Whether medical marijuana is ever substituted for other substances is not the full story
- Response to Comment by Hecht & Miller-Day on Truth and D.A.R.E.: Is D.A.R.E.'s new Keepin it REAL curriculum suitable for American nationwide implementation?
- The Charlie Sheen Effect on Rapid In-home Human Immunodeficiency Virus Test Sales
- Truth and D.A.R.E.: Is D.A.R.E.'s new Keepin it REAL curriculum suitable for American nationwide implementation?
- *The case for uniform controls in drug policy studies
- Medicare Recipients' Use Of Medical Marijuana
- *Industry watch: heat-not-burn tobacco products are about to reach their boiling point
- Commentary on New Perspectives on Drug Education/Prevention
- *Selling prevention: Using a business framework to analyze the state of prevention and overcome obstacles to expanding substance abuse prevention
First or sole-authored publications marked with asterisk in CV.
Contact
Email: [email protected]
Department of Economics, MIT • Cambridge, MA