In this paper we model demand for four cephalosporins and compute own- and cross-price elasticities between branded and generic versions of the four drugs. We model demand as a multistage budgeting problem, and argue that such a model is appropriate to the multistage nature of the purchase of pharmaceutical products, in particular, the prescribing and dispensing stages. We find quite high elasticities between generic substitutes and also significant elasticities between some therapeutic substitutes.
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Paper provided by Massachusetts Institute of Technology (MIT), Department of Economics in its series Working papers with number
96-24.
Length: 38 pages Date of creation: 1996 Date of revision: Handle: RePEc:mit:worpap:96-24
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Find related papers by JEL classification: L65 - Industrial Organization - - Industry Studies: Manufacturing - - - Chemicals; Rubber; Drugs; Biotechnology
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