Communication, Renegotiation, and the Scope for Collusion

Kühn, Kai-Uwe and David Cooper (david-j-cooper@uiowa.edu)

No 7563, CEPR Discussion Papers from C.E.P.R. Discussion Papers

Abstract: We use experiments to analyze what type of communication is most effective in achieving cooperation in a simple collusion game. Consistent with the existing literature on communication and collusion, even minimal communication leads to a short run increase in collusion. However, in a limited message-space treatment where subjects cannot communicate contingent strategies, this initial burst of collusion rapidly collapses. When unlimited pre-game communication is allowed via a chat window, an initial decline in collusion is reversed over time. Content analysis is used to identify multiple channels by which communication improves collusion in this setting. Explicit threats to punish cheating prove to be by far the most important factor to successfully establish collusion, consistent with the existing theory of collusion. However, collusion is even more likely when we allow for renegotiation, contrary to standard theories of renegotiation. What appears critical for the success of collusion with renegotiation is that cheaters are often admonished in strong terms. Allowing renegotiation therefore appears to increase collusion by allowing for an inexpensive and highly effective form of punishment.

Keywords: Collusion; Communication; Experiments; Guilt aversion; Renegotiation; Trust (search for similar items in EconPapers)
JEL-codes: C72 C73 C92 D03 D43 L13 L41 (search for similar items in EconPapers)
Date: 2009-11
New Economics Papers: this item is included in nep-com, nep-exp and nep-gth
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (10)

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Journal Article: Communication, Renegotiation, and the Scope for Collusion (2014)
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