Guaranteed storage? Risk and credit constraints in the demand for postharvest technology
研究了在孟加拉国农村，将密封储存袋与保修捆绑能否替代保险来促进技术采纳，发现保修无效而信贷显著提高了农户的支付意愿。
Abstract Uninsured risk is often cited to explain the lagging adoption of new agricultural technologies in low-income regions. However, insurance interventions suffer from poor take-up. We test whether bundling a new product–hermetic storage bags–with a warranty can serve as a viable alternative. We compare the warranty to a credit intervention and a control using an incentivized auction in rural Bangladesh. We find the warranty had no impact on demand. Providing the bags on credit significantly increased willingness-to-pay, and machine learning estimates indicate credit may have raised the demand for the most marginal farmers. Warranties failed to stimulate demand along any dimension.