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Common Agent or Double Agent? Pharmacy Benefit Managers in the Prescription Drug Market / Rena M. Conti, Brigham Frandsen, Michael L. Powell, James B. Rebitzer.
- Format:
- Book
- Author/Creator:
- Conti, Rena M.
- Series:
- Working Paper Series (National Bureau of Economic Research) no. w28866.
- NBER working paper series no. w28866
- Language:
- English
- Physical Description:
- 1 online resource: illustrations (black and white);
- Place of Publication:
- Cambridge, Mass. National Bureau of Economic Research 2021.
- Summary:
- A small number of pharmacy benefit managers (PBMs) dominate the market for branded pharmaceuticals in the United States, but they are controversial, and their economic significance is poorly understood. Large PBMs are market intermediaries. They are also a common agent operating formularies on behalf of various third-party payers. We present a model that captures these dual roles and also clarifies the economics of drug rebates. We find that PBM-run formularies enhance the efficiency of drug markets, but when PBMs are highly concentrated these gains accrue to PBMs rather than consumers or drug makers. We also identify threats to formulary efficiency including most favored nation agreements between drug makers and PBMs and the strategic setting of high list prices by drug makers. Our model also offers insights into current market structures and a framework for assessing market reforms.
- Notes:
- Print version record
- May 2021.
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