The Dynamic Free Rider Problem: A Laboratory Study
通过实验室实验研究耐用公共品积累中的搭便车行为，比较可逆与不可逆两种经济体制，发现结果支持马尔可夫完美均衡的定性预测，但公共品水平高于均衡预测，且存在历史依赖证据。
We report the results of an experiment that investigates free riding in the accumulation of durable public goods. We consider economies with reversibility, where contributions can be positive or negative; and economies with irreversibility, where contributions are nonnegative. Aggregate outcomes support the qualitative predictions of the Markov Perfect Equilibria (MPE) characterized in Battaglini, Nunnari, and Palfrey (2014): steady state levels of public good are lower with reversibility than irreversibility; accumulation is inefficiently slow; and the public good is under-provided in both regimes. On the other hand, public good levels are higher than MPE, and some evidence of history dependence is detected.