NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Craig Earle

Cancer Care Ontario and the Ontario Institute for
Sunnybrook Health Sciences Centre
2075 Bayview Avenue, G-Wing, Room 106
Toronto, Ontario
Canada, M4N 3M5
craig.earle@ices.on.ca
Tel: 617/432-4434

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

NBER Working Papers and Publications

July 2013Physician Agency and Competition: Evidence from a Major Change to Medicare Chemotherapy Reimbursement Policy
with Mireille Jacobson, Tom Y. Chang, Joseph P. Newhouse: w19247
We investigate the role of physician agency and competition in determining health care supply and patient outcomes. A 2005 change to Medicare fees had a large, negative impact on physician profit margins for providing chemotherapy treatment. In response to these cuts, physicians increased their provision of chemotherapy and changed the mix of chemotherapy drugs they administered. The increase in treatment improved patient survival. These changes were larger in states that experienced larger decreases in physician profit margins. Finally while physician response was larger in more competitive markets, survival improvements were larger in less competitive markets.
 
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