Strategy revision opportunities and collusion
研究了无限重复两人博弈中策略修订机会如何影响合谋水平，发现策略互补型游戏中修订机会促进合谋，而策略替代型游戏中无影响。
Abstract This paper studies whether and how strategy revision opportunities affect levels of collusion in indefinitely repeated two-player games. Consistent with standard theory, we find that such opportunities do not affect strategy choices, or collusion levels, if the game is of strategic substitutes. In games of strategic complements, by contrast, revision opportunities lead to more collusion. We discuss alternative explanations for this result.