Property Rights by Squatting: Land Ownership Risk and Adverse Possession Statutes
研究了美国各州逆权占有法规如何通过平衡过去合法所有者索赔风险与驱逐未来侵占者成本，反而强化了私有产权，并用46州数据验证了理论。
A fundamental aspect of private property is the right to exclude trespassers or squatters. Nonetheless, in all 50 states a trespasser can acquire ownership by continuously occupying a parcel of land until the statutorily set period of limitations runs out. Although these adverse possession statutes appear to weaken property rights, this paper explains how such limits are valuable to property owners by balancing the risk of claims from past legitimate owners against the cost of expelling future trespassers or squatters. The empirical analysis using data from 46 states provides evidence that is consistent with the theory.