In this paper we study the robustness of the deadline effect in bargaininggames using constant and slowly decreasing pies, different time horizons,and both constant and alternating role modes. With decreasing pies efficiency requires early agreements while constant pies allow for efficient late...

A mechanism with low direct cost of use may be preferred to alternatives implementing more efficient allocations. We show this experimentally by giving pairs of subjects the option to agree on a single average price for a sequence of trades - in effect pooling several small bargains into a...