University of Chicago
Harris School of Public Policy
1155 E. 60th Street
Chicago, IL 60637
NBER Working Papers and Publications
|May 2014||The Market for High-Quality Medicine|
with Wesley Yin: w20091
This study examines the effect of chain store entry on drug quality and prices in the retail pharmacy market in Hyderabad, India. In contrast to prevailing mom-and-pop pharmacies, chains exploit scale economies to offer high-quality drugs at lower cost. With a unique data set and a natural experiment methodology, we show that chain entry leads to a relative 5 percent improvement in drug quality and a 2 percent decrease in prices at incumbent retailers. These changes do not depend on the socioeconomic status of consumers, suggesting that chain entry improves consumer welfare throughout the market. Despite the likely role of asymmetric information in this market, we show that consumers partially infer these quality improvements. Our findings suggest that in markets with asymmetric informatio...
|April 2011||Learning During a Crisis: the SARS Epidemic in Taiwan|
with Chun-Fang Chiang, Anup Malani: w16955
When SARS struck Taiwan in the spring of 2003, many people feared that the disease would spread through the healthcare system. As a result, outpatient medical visits fell by over 30 percent in the course of a few weeks. This paper examines how both public information (SARS incidence reports) and private information (the behavior and opinions of peers) contributed to this public reaction. We identify social learning through a difference-in-difference strategy that compares long time community residents to recent arrivals, who are less socially connected. We find that people learned from both public and private sources during SARS. In a dynamic simulation based on the regressions, social learning substantially magnifes the response to SARS.
Published: Bennett, Daniel & Chiang, Chun-Fang & Malani, Anup, 2015. "Learning during a crisis: The SARS epidemic in Taiwan," Journal of Development Economics, Elsevier, vol. 112(C), pages 1-18. citation courtesy of