北大经院工作坊第1315场
Selective Disclosure in Overlapping Generations
微观理论经济学工作坊
主讲人：裴迪（Associate Professor, Northwestern University）
主持老师：
（北大经院）吴泽南、石凡奇
（北大国发院）胡岠
参与老师：
（北大经院）胡涛
（北大国发院）汪浩、邢亦青
（北大光华）翁翕、刘烁
时间：2026年6月25日（周四）10:30-12:00
地点：北京大学经济学院305会议室
主讲人简介：
Harry Pei has served on the faculty of Northwestern University since 2018. He received his Ph.D. in Economics from MIT and has published papers in journals such as the Econometrica, the Review of Economic Studies, and the Journal of Political Economy. He is a recipient of the NSF CAREER Award and was an invited speaker for the REStud Tour.
摘要：
We develop an overlapping generations model where each agent observes a verifiable private signal about the state and, with positive probability, also receives signals disclosed by his predecessor. The agent then takes an action and decides which signals to pass on. Each agent’s action has a positive externality on his predecessor and his optimal action increases in his belief about the state. We show that as the probability that messages reach the next generation approaches one, agents become increasingly selective in disclosing information. In the limit, all signals except for the most favorable ones will be concealed.
北大经院工作坊第1316场
Credit and Demand for Green Energy: Evidence from Small Firms in Kenya
生态、环境与气候变化经济学工作坊
主讲人：殳蕴钰（上海财经大学经济学院助理教授）
时间：2026年6月25日（周四）10:30-12:00
地点：北京大学国家发展研究院承泽园246教室
主讲人简介：
殳蕴钰，上海财经大学经济学院助理教授。2025年获美国布朗大学经济学博士学位，研究方向为发展经济学与环境经济学。其研究关注中国及全球南方国家的气候适应与绿色转型等环境议题，覆盖加纳、肯尼亚、乌干达等国家，主持多项课题获 IGC、PEDL 等国际机构资助。
摘要：
Limited access to credit remains a major barrier to business growth in sub-Saharan Africa, yet systematic evidence on how credit frictions shape firm investment decisions is scarce. Adoption decisions only reflect present values of expected adoption benefits net of credit contract payments, which masks the implicit cost of borrowing. This paper evaluates firm demand for solar sold on credit by eliciting discrete choices over contracts, and experimentally compares the impact of down payment subsidies versus flexible subsidies for down payment or repayment. We find that demand is primarily driven by sensitivity to upfront costs rather than future repayments. When offered the flexibility to allocate the subsidy to the down payment or the repayment, nearly all adopters choose to reduce the upfront cost. Despite the same de facto subsidy structure, the tailored subsidy positively selects less liquidity-constrained adopters and shifts firms toward solar-for-grid substitution in lighting, while the down payment subsidy expands energy use on other non-lighting business margins.
供稿：科研与博士后办公室
美编：初夏
责编：度量、雨禾、雨田
