Persuasion with Correlation Neglect: A Full Manipulation Result

American Economic Review, Volume 4, Issue 1

DOI: 10.1257/aeri.20210007 

We consider an information design problem in which a sender tries to persuade a receiver that has "correlation neglect," i.e., fails to understand that signals might be correlated. We show that a sender with unlimited number of signals can fully manipulate the receiver. Specifically, the sender can induce the receiver to hold any state-dependent posterior she wishes to. If the sender only wishes to induce a state-independent posterior, she can use fully correlated signals, but generally she needs to design more involved correlation structures.



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