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The Welfare Impact of Parallel Imports: A Structural Approach Applied to the German Market for Oral Anti-Diabetics

Listed author(s):
  • Tomaso Duso
  • Annika Herr
  • Moritz Suppliet

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 €19 million per year (or €130 million in total) which is relatively small compared to the average annual market size of around €227 million based on ex-factory prices. The variable profits for the manufacturers of original drugs from the German market are reduced by 18 million (or 37%) per year when parallel trade is allowed, yet only one third of this difference is appropriated by the importers.

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File URL: http://www.diw.de/documents/publikationen/73/diw_01.c.441849.de/dp1373.pdf
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Paper provided by DIW Berlin, German Institute for Economic Research in its series Discussion Papers of DIW Berlin with number 1373.

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Length: 32 p.
Date of creation: 2014
Handle: RePEc:diw:diwwpp:dp1373
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  1. Margaret E. Slade, 2004. "Market Power and Joint Dominance in U.K. Brewing," Journal of Industrial Economics, Wiley Blackwell, vol. 52(1), pages 133-163, 03.
  2. Abe Dunn, 2012. "Drug Innovations and Welfare Measures Computed from Market Demand: The Case of Anti-cholesterol Drugs," American Economic Journal: Applied Economics, American Economic Association, vol. 4(3), pages 167-189, July.
  3. Margaret K. Kyle, 2007. "Pharmaceutical Price Controls and Entry Strategies," The Review of Economics and Statistics, MIT Press, vol. 89(1), pages 88-99, February.
  4. Ganslandt, Mattias & Maskus, Keith E., 2007. "Vertical distribution, parallel trade, and price divergence in integrated markets," European Economic Review, Elsevier, vol. 51(4), pages 943-970, May.
  5. Farasat A. S. Bokhari & Gary M. Fournier, 2013. "Entry in the ADHD drugs market: Welfare impact of generics and me-too's," Journal of Industrial Economics, Wiley Blackwell, vol. 61(2), pages 339-392, 06.
  6. Suppliet, Moritz & Herr, Annika, 2016. "Cost-Sharing and Drug Pricing Strategies : Introducing Tiered Co-Payments in Reference Price Markets," Discussion Paper 2016-040, Tilburg University, Center for Economic Research.
  7. Bennato, Anna Rita & Valletti, Tommaso, 2014. "Pharmaceutical innovation and parallel trade," International Journal of Industrial Organization, Elsevier, vol. 33(C), pages 83-92.
  8. Sara Ellison Fisher & Iain Cockburn & Zvi Griliches & Jerry Hausman, 1997. "Characteristics of Demand for Pharmaceutical Products: An Examination of Four Cephalosporins," RAND Journal of Economics, The RAND Corporation, vol. 28(3), pages 426-446, Autumn.
  9. Kaiser, Ulrich & Mendez, Susan J. & Rønde, Thomas & Ullrich, Hannes, 2014. "Regulation of pharmaceutical prices: Evidence from a reference price reform in Denmark," Journal of Health Economics, Elsevier, vol. 36(C), pages 174-187.
  10. Herr, A. & Suppliet, M., 2011. "Co-Payment Exemptions and Reference Prices: an Empirical Study of Pharmaceutical Prices in Germany," Health, Econometrics and Data Group (HEDG) Working Papers 11/18, HEDG, c/o Department of Economics, University of York.
  11. Laura Grigolon & Frank Verboven, 2014. "Nested Logit or Random Coefficients Logit? A Comparison of Alternative Discrete Choice Models of Product Differentiation," The Review of Economics and Statistics, MIT Press, vol. 96(5), pages 916-935, December.
  12. Ching, Andrew T., 2010. "Consumer learning and heterogeneity: Dynamics of demand for prescription drugs after patent expiration," International Journal of Industrial Organization, Elsevier, vol. 28(6), pages 619-638, November.
  13. Lee G. Branstetter & Chirantan Chatterjee & Matthew Higgins, 2011. "Regulation and Welfare: Evidence from Paragraph IV Generic Entry in the Pharmaceutical Industry," NBER Working Papers 17188, National Bureau of Economic Research, Inc.
  14. Amil Petrin, 2002. "Quantifying the Benefits of New Products: The Case of the Minivan," Journal of Political Economy, University of Chicago Press, vol. 110(4), pages 705-729, August.
  15. Panos Kanavos & Joan Costa-Font, 2005. "Pharmaceutical parallel trade in Europe: stakeholder and competition effects," Economic Policy, CEPR;CES;MSH, vol. 20(44), pages 751-798, October.
  16. Joseph H. Golec & John A. Vernon, 2006. "European Pharmaceutical Price Regulation, Firm Profitability, and R&D Spending," NBER Working Papers 12676, National Bureau of Economic Research, Inc.
  17. Kyle Margaret, 2011. "Strategic Responses to Parallel Trade," The B.E. Journal of Economic Analysis & Policy, De Gruyter, vol. 11(2), pages 1-34, January.
  18. Panle Gia & Pinelopi K. Goldberg & Shubham Chaudhuri, 2006. "Estimating the Effects of Global Patent Protection in Pharmaceuticals: A Case Study of Quinolones in India," American Economic Review, American Economic Association, vol. 96(5), pages 1477-1514, December.
  19. Gregory S. Crawford & Matthew Shum, 2005. "Uncertainty and Learning in Pharmaceutical Demand," Econometrica, Econometric Society, vol. 73(4), pages 1137-1173, 07.
  20. Gene M. Grossman & Edwin L.-C. Lai, 2008. "Parallel imports and price controls," RAND Journal of Economics, RAND Corporation, vol. 39(2), pages 378-402.
  21. Izabela Jelovac & Catalina Bordoy, 2005. "Pricing and Welfare Implications of Parallel Imports in the Pharmaceutical Industry," International Journal of Health Economics and Management, Springer, vol. 5(1), pages 5-21, January.
  22. Antara Dutta, 2011. "From Free Entry to Patent Protection: Welfare Implications for the Indian Pharmaceutical Industry," The Review of Economics and Statistics, MIT Press, vol. 93(1), pages 160-178, February.
  23. Ganslandt, Mattias & Maskus, Keith E., 2004. "Parallel imports and the pricing of pharmaceutical products: evidence from the European Union," Journal of Health Economics, Elsevier, vol. 23(5), pages 1035-1057, September.
  24. Panos Kanavos & Sotiris Vandoros, 2010. "Competition in prescription drug markets: is parallel trade the answer?," Managerial and Decision Economics, John Wiley & Sons, Ltd., vol. 31(5), pages 325-338.
  25. Steven T. Berry, 1994. "Estimating Discrete-Choice Models of Product Differentiation," RAND Journal of Economics, The RAND Corporation, vol. 25(2), pages 242-262, Summer.
  26. Berry, Steven & Levinsohn, James & Pakes, Ariel, 1995. "Automobile Prices in Market Equilibrium," Econometrica, Econometric Society, vol. 63(4), pages 841-890, July.
  27. Frank Verboven, 1996. "International Price Discrimination in the European Car Market," RAND Journal of Economics, The RAND Corporation, vol. 27(2), pages 240-268, Summer.
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