[Moore and Repullo, Econometrica 58 (1990) 1083-1099] and [Dutta and Sen, Rev. Econom. Stud. 58 (1991) 121-128] are two fundamental papers on two-agent Nash implementation. Both of them are based on Maskin's classic paper [Maskin, Rev. Econom. Stud. 66 (1999) 23-38]. A recent work [Wu, Inter. J....

The Prisoner's Dilemma is a simple model that captures the essential contradiction between individual rationality and global rationality. Although the one-shot Prisoner's Dilemma is usually viewed simple, in this paper we will categorize it into five different types. For the type-4 Prisoner's...