The Market Impacts of Pharmaceutical Product Patents in Developing Countries: Evidence from India

We are grateful to Preethi Rao for excellent research assistance and to Jen Brown, Meghan Busse, Leemore Dafny, Pascaline Dupas, Amy Finkelstein, Margaret Kyle, Grant Miller, Neale Mahoney, Petra Moser, Matt Notowidigdo, Emily Oster, Bhaven Sampat, Heidi Williams, seminar participants at the Bates White Life Sciences Conference and the 60th Anniversary Congress of the Yrjö Jahnsson Foundation for helpful comments. Duggan thanks the Dean's Research Fund and the Global Initiatives Fund at the Wharton School for support of this research and Goyal thanks the DECRG Research Support Budget grant of the World Bank. We also thank Bhaven Sampat for providing data on patent strength for a sample of products in the Indian market. The views expressed in this paper are solely those of the authors and do not represent the views of any of the institutions mentioned above. The statements, findings, conclusions, views, and opinions contained and expressed in this article are based in part on data obtained under license from the following IMS Health Incorporated information service(s): MIDAS™ (2003 - 2011), IMS Health Incorporated. All Rights Reserved. The statements, findings, conclusions, views, and opinions contained and expressed herein are not necessarily those of IMS Health Incorporated, any of its affiliated or subsidiary entities, or the National Bureau of Economic Research.