Dworczak, Piotr; Kolotilin, Anton - In: Theoretical economics : TE ; an open access journal in … 19 (2024) 4, pp. 1701-1755
We present a unified duality approach to Bayesian persuasion. The optimal dual variable, interpreted as a price function on the state space, is shown to be a supergradient of the concave closure of the objective function at the prior belief. Strong duality holds when the objective function is...