Constrained Information Design

We provide tools to analyze information design problems subject to constraints. We do so by showing that the techniques in Le Treust and Tomala (2019) extend to the case of multiple inequality and equality constraints. This showcases the power of the results in that paper to analyze problems of information design subject to constraints. We illustrate our results with applications to mechanism design with limited commitment (Doval and Skreta, 2020) and persuasion of a privately informed receiver (Kolotilin et al., 2017).