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Department of Economics, Norwegian School of Economics (NHH) Discussion Paper Series in Economics, Department of Economics, Norwegian School of Economics (NHH)

No 4/2015:
Reference pricing with endogenous generic entry.

Kurt R. Brekke (), Chiara Canta () and Odd Rune Straume ()

Abstract: In this paper we study the e¤ect of reference pricing on pharmaceutical prices and expenditures when generic entry is endogenously determined. We develop a Salop-type model where a brand-name producer competes with generic producers in terms of prices. In the market there are two types of consumers: (i) brand biased consumers who choose between brand-name and generic drugs, and (ii) brand neutral consumers who choose between the di¤erent generic drugs. We …nd that, for a given number of fi…rms, reference pricing leads to lower prices of all products and higher brand-name market shares compared with a reimbursement scheme based on simple coinsurance. Thus, in a free entry equilibrium, the number of generics is lower under reference pricing than under coinsurance, implying that the net effects of reference pricing on prices and expenditures are ambiguous. Allowing for price cap regulation, we show that the negative effect on generic entry can be reversed, and that reference pricing is more likely to result in cost savings than under free pricing. Our results shed light on the mixed empirical evidence on the effects of reference pricing on generic entry.

Keywords: Pharmaceuticals; Reimbursement schemes; Generic entry; (follow links to similar papers)

JEL-Codes: I11; I18; L13; L51; (follow links to similar papers)

33 pages, March 18, 2015

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