We consider a general scheme to construct Bayesian incentive-compatible mechanisms using a suitable ‘variable mechanism parametrization.’ The key idea is to perturb a given direct mechanism, which might not be truth revealing, introducing sufficient variability as a function of agents’ announcements to generate incentives for truthful revelation.We discuss a variable-price auction in a general setting as an example.
Laurent Villard, Stephan Brunner, Alberto Bottino, Ben McMillan, Moahan Murugappan
Boi Faltings, Aris Filos Ratsikas, Adam Julian Richardson