LEMON TECHNOLOGIES AND ADOPTION: MEASUREMENT, THEORY, AND EVIDENCE FROM AGRICULTURAL MARKETS IN UGANDA

• 成果类型: Article
• 署名作者: Bold, Tessa; Kaizzi, Kayuki C.; Svensson, Jakob; Yanagizawa-Drott, David
• 署名单位: Stockholm University; University of Zurich
• 刊物名称: QUARTERLY JOURNAL OF ECONOMICS
• ISSN/ISSBN: 0033-5533
• DOI: 10.1093/qje/qjx009
• 发表日期: 2017
• 页码: 1055-1100
• 关键词: nitrogen use efficiency; fertilizer; farmers; RISK

摘要

To reduce poverty and food insecurity in Africa requires raising productivity in agriculture. Systematic use of fertilizer and hybrid seed is a pathway to increased productivity, but adoption of these technologies remains low. We investigate whether the quality of agricultural inputs can help explain low take-up. Testing modern products purchased in local markets, we find that 30% of nutrient is missing in fertilizer, and hybrid maize seed is estimated to contain less than 50% authentic seeds. We document that such low quality results in low average returns. If authentic technologies replaced these low-quality products, however, average returns are high. To rationalize the findings, we calibrate a learning model using data from our agricultural trials. Because agricultural yields are noisy, farmers' ability to learn about quality is limited and this can help explain the low quality equilibrium we observe, but also why the market has not fully collapsed.