  The Bayesian persuasion model studies communication between an informed
sender and a receiver with a payoff-relevant action, emphasizing the ability of
a sender to extract maximal surplus from his informational advantage. In this
paper we study a setting with multiple senders, but in which the receiver
interacts with only one sender of his choice: senders commit to signals and the
receiver then chooses, at the interim stage, with which sender to interact. Our
main result is that whenever senders are even slightly uncertain about each
other's preferences, the receiver receives all the informational surplus in all
equilibria of this game.
