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Continuous Implementation With Small Transfers, Yi-Chun Chen, Takashi Kunimoto, Yifei Sun
Continuous Implementation With Small Transfers, Yi-Chun Chen, Takashi Kunimoto, Yifei Sun
Research Collection School Of Economics
The robust mechanism design literature investigates the global robustness of op-timal mechanisms to large changes in the environment. Acknowledging the global robustness as an overly demanding requirement, we propose continuous implementa-tion as a local robustness of optimal mechanisms to small changes in the environment. We say that a social choice function is continuously implementable “with small trans-fers” if there exists a mechanism which yields the outcome close to the desired one for all types close to the designer’s initial model. We show that when a generic cor-relation condition is imposed on the class of interdependent values environments, any incentive compatible …