The Market for High-Quality Medicine: Retail Chain Entry and Drug Quality in India
研究印度连锁药店进入对药品质量和价格的影响，发现连锁店进入使现有药店药品质量提高5%、价格下降2%，表明组织技术能改善信息不对称市场中的质量。
Abstract This study examines the effect of chain store entry on drug quality and prices in India. In contrast to prevailing mom-and-pop pharmacies, chains exploit scale economies in distribution and signaling to offer high-quality drugs at lower cost. We show that chain entry leads to a 5% improvement in drug quality and a 2% decrease in prices at incumbent retailers. Effects are larger for locally distributed drug brands but do not depend on consumer SES. Our findings suggest that in markets with asymmetric information, organizational technologies such as chains can play an important role translating market expansion into higher quality.