E. Weg et R. Zwick, TOWARD THE SETTLEMENT OF THE FAIRNESS ISSUES IN ULTIMATUM GAMES - A BARGAINING APPROACH, Journal of economic behavior & organization, 24(1), 1994, pp. 19-34
It has been suggested that modest demands by first movers in ultimatum
games are motivated by fairness. Here we present a bargaining framewo
rk in which the main characteristic of the ultimatum game is embedded
in an infinite horizon fixed-cost bargaining game where a quit move is
a legitimate response. We show that the threat of quitting which in t
heory is empty, has nonetheless a significant attenuating effect on th
e demands of strong players. The fairness argument is therefore invali
d since no moderation of demands is seen when the quit move is forbidd
en.