This paper examines a recurrent oligopoly game, where firms imitate the most successful behaviors in their memory. We intend to characterize stochastically stable states. Several models are considered which differ in the specification of players' memory. We note that the specification of memory...

[eng] Economists often use the notion of trust in order to justify, in spite of contractual incompleteness, agents commitment in cooperative relationships. However in the bosom of economic literature devoted to trust, this notion is polysemic. We discern two large definitions of trust, which are...