The digital provide: Information (technology), market performance, and welfare in the South Indian fisheries sector
成果类型：
Article
署名作者：
Jensen, Robert
署名单位：
Harvard University
刊物名称：
QUARTERLY JOURNAL OF ECONOMICS
ISSN/ISSBN：
0033-5533
DOI：
10.1162/qjec.122.3.879
发表日期：
2007
页码：
879-924
关键词：
摘要：
When information is limited or costly, agents are unable to engage in optimal arbitrage. Excess price dispersion across markets can arise, and goods may not be allocated efficiently. In this setting, information technologies may improve market performance and increase welfare. Between 1997 and 2001, mobile phone service was introduced throughout Kerala, a state in India with a large fishing industry. Using microlevel survey data, we show that the adoption of mobile phones by fishermen and wholesalers was associated with a dramatic reduction in price dispersion, the complete elimination of waste, and near-perfect adherence to the Law of One Price. Both consumer and producer welfare increased.
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