NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH
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Rosanna Smart

RAND Corporation
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NBER Working Papers and Publications

April 2020Variation in Performance of Commonly Used Statistical Methods for Estimating Effectiveness of State-Level Opioid Policies on Opioid-Related Mortality
with Beth Ann Griffin, Megan S. Schuler, Elizabeth A. Stuart, Stephen Patrick, Elizabeth McNeer, David Powell, Bradley Stein, Terry Schell, Rosalie Liccardo Pacula: w27029
Over the last two decades, there has been a surge of opioid-related overdose deaths resulting in a myriad of state policy responses. Researchers have evaluated the effectiveness of such policies using a wide-range of statistical models, each of which requires multiple design choices that can influence the accuracy and precision of the estimated policy effects. This simulation study used real-world data to compare model performance across a range of important statistical constructs to better understand which methods are appropriate for measuring the impacts of state-level opioid policies on opioid-related mortality. Our findings show that many commonly-used methods have very low statistical power to detect a significant policy effect (< 10%) when the policy effect size is small yet impactfu...
February 2019De Facto or De Jure? Ethnic Differences in Quit Responses to Legal Protections of Medical Marijuana Dispensaries
with Jenny Williams, Rosalie Liccardo Pacula: w25555
This paper studies the impact of legal medical marijuana markets on the decision to quit marijuana use, distinguishing between de jure legalization, in which dispensaries are legally protected, and de facto legalization, where dispensaries operate in the absence of laws protecting them. Geographic and temporal variation in the presence of de facto and de jure legalized markets serve to identify their impact on quitting. Although we find little robust evidence that quitting by females is impacted by either the presence or protection of retail medical marijuana dispensaries, our results reveal significant, and ethnically differentiated responses by males. Minority males are found to delay quitting in response to legal protection of dispensaries, while white males delay quitting in response t...
 
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