Individual and Collective Time-Consistency
重新审视Strotz-Pollak的一致规划问题，提出通过Greenberg的社会情境理论来精炼子博弈完美均衡，并统一处理个体时间一致性和集体时间一致性问题。
This paper reconsiders the Strotz-Pollak problem of consistent planning and argues that a solution to this problem requires a refinement of subgame-perfectness. Such a refinement is offered through an analysis based on Greenberg's "theory of social situations". The properties of this refinement are investigated and illustrated. A unifying framework is presented whereby consistent one-person planning as a problem of individual time-consistency and renegotiation-proofness as a problem of collective time-consistency are captured through the same general concept.