Entry Deterrence and the Free Rider Problem
研究寡头垄断行业中在位企业阻止潜在进入者时，由于公共品属性导致的搭便车问题，发现非合作行为下不会出现威慑投资不足，反而可能陷入利润更低的帕累托劣势均衡。
The public good aspect of entry prevention is examined in an industry characterized by an established oligopoly facing a potential entrant. Although incumbent firms act noncooperatively, underinvestment in entry-deterrence does not occur and in fact incumbents may find themselves in a Pareto dominated arrangement (in terms of profits) by preventing entry.