讲座题目：Informed Climate Adaptation: Input and Output Subsidies for Shaded Cocoa

摘要：With growing climate risks, agro-environmental policies seek to protect the environment while reducing poverty by incentivizing climate adaptation. We study how information shapes adaptation under different subsidy schemes for cocoa farmers in Ghana, where forest tree planting for shade is encouraged as an adaptation strategy. Conducting a lab-in-the-field experiment, we compare the impacts of an information intervention under an input subsidy for planting forest trees and an output subsidy for producing cocoa beans from shaded farms. While farmers receiving the information in both subsidy groups plant more forest trees than their subsidy-only counterparts, the increase is higher under the output subsidy than the input subsidy even though the information leads both groups to similarly update their beliefs about the benefits of shade. We rationalize the differential effects of information with a model in which beliefs about rainfall uncertainty and shade benefits affect ex ante input decisions. Counterfactuals show that output subsidy has greater potential to drive adaptation than input when beliefs are reasonably correct. We validate the lab results by distributing tree seedlings, finding consistent treatment effects on the number of seedlings requested and obtained.

主讲人：殳蕴钰 助理教授（上海财经大学）

讲座时间：2025年11月12日13:00—14:30

讲座地点：求是楼343会议室

讲座语言：中英文

主持人：翁茜 副教授

参与人员：热烈欢迎广大师生参加。

主讲人简介：

殳蕴钰，现任上海财经大学人力、资源与环境经济系助理教授。2025年获布朗大学经济学博士。研究领域为发展经济学与环境经济学，聚焦发展中国家微观主体的气候适应与绿色能源转型等系列环境议题。研究覆盖中国、加纳、肯尼亚、乌干达等国家。多项主持课题获International Growth Centre (IGC)、Private Enterprise Development in Low-Income Countries (PEDL) 等国际研究机构持续资助。