全球智库信息集成服务系统(G2TT): DP9114 Can Good Products Drive Out Bad? Evidence from Local Markets for (Fake?) Antimalarial Medicine in Uganda

G2TT

来源类型	Discussion paper
规范类型	论文
来源ID	DP9114
	DP9114 Can Good Products Drive Out Bad? Evidence from Local Markets for (Fake?) Antimalarial Medicine in Uganda
	Jakob Svensson; Martina Björkman Nyqvist; David Yanagizawa-Drott
发表日期	2012-09-02
出版年	2012
语种	英语
摘要	Counterfeit and sub-standard antimalarial drugs present a growing threat to public health. This paper investigates the mechanisms that determine the prevalence of fake antimalarial drugs in local markets, their effects, and potential interventions to combat the problem. We collect drug samples from a large set of local markets in Uganda using covert shoppers and employ Raman spectroscopy to test for drug quality. We find that 37 percent of the local outlets sell fake antimalarial drugs. Motivated by a simple model, we conduct a market-level experiment to test whether authentic drugs can drive out fake drugs from the local market. We find evidence of such externalities: the intervention reduced prevalence of substandard and counterfeit drugs in incumbent outlets by half. We also provide suggestive evidence that misconceptions about malaria lead consumers to overestimate antimalarial drug quality, and that opportunistic drug shops exploit these misconceptions by selling substandard and counterfeit drugs. Together, our results indicate that high quality products can drive out low quality ones, but the opposite is true when consumers are less able to infer product quality.
主题	Development Economics
关键词	Act Asymmetric information Counterfeit medicine Field experiment Malaria
URL	https://cepr.org/publications/dp9114
来源智库	Centre for Economic Policy Research (United Kingdom)
资源类型	智库出版物
条目标识符	http://119.78.100.153/handle/2XGU8XDN/537947
推荐引用方式 GB/T 7714	Jakob Svensson,Martina Björkman Nyqvist,David Yanagizawa-Drott. DP9114 Can Good Products Drive Out Bad? Evidence from Local Markets for (Fake?) Antimalarial Medicine in Uganda. 2012.