Horwitz graduated from Northwestern University, with a Bachelor of Arts in History with honors. She holds a Juris Doctor magna cum laude, Master in Public Policy, and Doctor of Philosophy in Health Policy from Harvard University. She was a Law Clerk for Judge Norman H. Stahl of the United States Court of Appeals for the First Circuit (1997–1998).
Horwitz joined the faculty of the University of Michigan Law School in 2003. While there, she was the Company-Director of the Program in Law and Economics and the Louis and Myrtle Moskowitz Research Professor of Business and Law. She also held appointments at the University of Michigan School of Public Health and the Gerald R. Ford School of Public Policy.
Horwitz has written extensively on the interconnections among health regulation, economics, and policy.
She has published on topics ranging from the effects of nonprofit and for-profit ownership of hospitals on medical service provision to medical technology diffusion, and has frequently commented on these topics in editorials, testimony to Congress, and the press Horwitz’s recent publications include the article “Wellness Incentives In The Workplace: Cost Savings Through Cost Shifting To Unhealthy Workers,” which has attracted considerable press and blog attention.
She and Marion Fremont-Smith are Company-Reporters on the American Law Institute Restatement of Charitable Nonprofit Organizations.
Horwitz is also Faculty Research Fellow at the National Bureau of Economic Research, Reporter at the American Law Institute, Adjunct Professor of Economics at the University of Victoria, Victoria, British Columbia of Canada, and a member of the Board of Advisors of the New York University National Center on Philanthropy and the Law. She has been a member of the Core Faculties of both the Robert Wood Johnson Clinical and Policy Scholars programs at Michigan.
