On the possibility of efficient bilateral trade
I study a sequential process in which different pairs of traders bargain over the terms of trade of an indivisible good. I consider both one-sided and two-sided offers based bargaining at the stage-game level. The sequential process is modelled as an infinite stage-game of incomplete information and the paper studies the efficiency properties of its equilibria. It is shown: With one-sided offers, all equilibria are long-run ex post efficient; with two-sided offers, examples of equilibria are constructed with widely varying efficiency properties.