A Structural Approach Applied to the German Market for Oral Anti-diabetics
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چکیده
We investigate the welfare impact of parallel imports using a large panel data set containing monthly information on sales, ex-factory prices, and further product characteristics for all 700 anti-diabetic drugs sold in Germany between 2004 and 2010. We estimate a two-stage nested logit model of demand and, based on an oligopolistic model of multiproduct firms, we then recover the marginal costs and markups. We finally evaluate the effect of the parallel imports’ policy by calculating a counter-factual scenario without parallel trade. According to our estimates, parallel imports reduce the prices for patented drugs by 11% and do not have a significant effect on prices for generic drugs. This amounts to an increase in the demand-side surplus by e19 million per year (or e130 million in total) which is relatively small compared to the average annual market size of around e227 million based on ex-factory prices. The variable profits for the manufacturers of original drugs from the German market are reduced by e18 million (or 37%) per year when parallel trade is allowed, yet only one third of this difference is appropriated by the importers.
منابع مشابه
The welfare impact of parallel imports: a structural approach applied to the German market for oral anti-diabetics.
We investigate the welfare impact of parallel imports using a large panel dataset containing monthly information on sales, ex-factory prices, and further product characteristics for all 649 anti-diabetic drugs sold in Germany between 2004 and 2010. We estimate a two-stage nested logit model of demand, and on the basis of an oligopolistic model of multi-product firms, we then recover the margina...
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تاریخ انتشار 2014