Infinitely repeated interaction between a defendant and a plaintiff ca
n enhance the credibility of cheap talk and improve efficiency in outc
omes that would be infeasible without cheap talk, The basic driving fo
rce is reputation effect, If the players are concerned about their rep
utation, cheap talk cannot be taken as meaningless even in a game wher
e the interests of the players are sufficiently conflicting, because p
ossible current gains from opportunistic behavior can be wiped out by
future losses in payoff from damaged reputation.