Solar Market Frictions: The Role of Platforms and Policies
利用在线平台数据估计太阳能光伏安装市场的结构模型，发现增加平台竞价数量可大幅降低安装价格，而美国太阳能投资税收抵免通过缓解市场势力和减少污染外部性，每美元补贴带来1.35美元的总剩余增加。
Abstract This paper estimates a structural model of the solar photovoltaic (PV) installation market using detailed data from an online platform. The model incorporates households' solar installation choices and sellers' strategic bidding. Counterfactual simulations evaluate how equilibrium outcomes respond to changes in market structure and government subsidies, yielding two main results: (1) an increase from one to five bids through the platform reduces gross installation prices by $4,000 (15.5%), and (2) the U.S. Solar Investment Tax Credit increases total surplus on the platform by $1.35 per dollar of subsidy expenditure by mitigating market power and reducing pollution externalities.