In multiple-principal multiple-agent models of moral hazard, we provide sufficient conditions for the outcomes of pure-strategy equilibria in direct mechanisms to be preserved when principals can offer indirect communication schemes. The conditions include strong robustness in the direct mechanism game, as developed in the literature on competing mechanisms… (More)
This note presents a counterexample to Theorems 3 and 4 in Peters . This note is an outcome of researches started when all the authors were working at CORE. Thus, we would like to thank all CORE people for their unique support. We also thank E. Campioni and M. Peters for their extremely useful comments on a previous draft of this work.