NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Sarah Hamersma

Syracuse University
Maxwell School of Citizenship
and Public Affairs
200 Eggers Hall
Syracuse, NY 13244-1020

E-Mail: EmailAddress: hidden: you can email any NBER-related person as first underscore last at nber dot org

NBER Working Papers and Publications

April 2018Insurance Expansions and Children’s Use of Substance Use Disorder Treatment
with Johanna Catherine Maclean: w24499
This study provides the first evidence on the effects of U.S. state-level private and public insurance expansions on specialty substance use disorder (SUD) treatment use among children ages 12 to 18. We examine both private and public expansions over the period 1996 to 2010. Public insurance expansions are measured by changes in income thresholds for Medicaid and the State Children’s Health Insurance Program (SCHIP). Private expansions are generated by state laws that compel private insurers to cover SUD treatment services at ‘parity’ with general healthcare services. We apply differences-in-differences regression models and leverage an all-payer admissions dataset. Our findings suggest that expansions, both private and public, lead to increases in admissions to treatment and increased ins...
April 2011Information Shocks and Social Networks
with David N. Figlio, Jeffrey Roth: w16930
The relationships between social networks and economic behavior have been well-documented. However, it is often difficult to distinguish between the role of information sharing and other features of a neighborhood, such as factors that are common to people of the same ethnicities or socio-economic opportunities, or uniquely local methods of program implementation. We seek to gain new insight into the potential role of information flows in networks by investigating what happens when information is disrupted. We exploit rich microdata from Florida vital records and program participation files to explore the effects of neighborhood social networks on the degree to which immigrant WIC participation during pregnancy declined in the "information shock" period surrounding welfare reform. We c...
 
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