Does the rotten apple spoils his companions? This is the question we analyze in the context of a repeated population game with behavioral types. Our experimental results show that the inclusion of a non-cooperative player in an anonymous community makes cooperation much more difficult to sustain...

This paper offers an explanation for the common observation that political incumbents not only frequently win reelection, but often face weak competition or no competition at all when running for reelection. I explain this outcome by modeling the entry decision of potential election candidates...