Patchwork Policies, Spillovers, and the Search for Oil and Gas
研究了美国油气所有权拼凑格局下，不同所有者政策对相邻地块钻井和产量的溢出效应，发现联邦土地靠近州土地时钻井概率更低。
The United States has a complex patchwork of mineral ownership, where rights to oil and gas may be owned by the federal government, state governments, or private agents. I show why the policies imposed by one owner have theoretically ambiguous spillover effects on the drilling and production outcomes of neighboring plots of land. Exploiting a natural experiment in Wyoming with exogenous ownership assignment, I find significant spillovers: federal land close to state land has a lower probability of drilling than federal land far from state land.