NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH
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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
Institutional Affiliation: Syracuse University

NBER Working Papers and Publications

April 2018Insurance Expansions and Children’s Use of Substance Use Disorder Treatment
with Johanna Catherine Maclean: w24499
We provide the first evidence on the effects of expansions to private and public insurance programs on children’s use of specialty substance use disorder (SUD) treatment. We combine administrative government data over the period 1996 to 2017 with quasi-experimental differences-in-differences methods to study this question. Expansions of the private market – laws that compel insurers to cover SUD treatment services as parity with general healthcare – increase admissions by 21%. Increases in admissions are driven by patients with private coverage and receiving outpatient care. The number of admissions of patients with no insurance also increases following parity law adoption. There is mixed evidence on changes in admissions following a public insurance expansion that increases the income eli...
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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