Information Design in Cheap Talk

Fuente: arXiv
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Main Authors: Lyu, Qianjun, Suen, Wing
Format: Preprint
Published: 2022
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author Lyu, Qianjun
Suen, Wing
author_facet Lyu, Qianjun
Suen, Wing
contents An uninformed sender publicly commits to an informative experiment about an uncertain state, privately observes its outcome, and sends a cheap-talk message to a receiver. We provide an algorithm valid for arbitrary state-dependent preferences that will determine the sender's optimal experiment and his equilibrium payoff under binary state space. We give sufficient conditions for informative information transmission. These conditions depend more on marginal incentives -- how payoffs vary with the state -- than on the alignment of sender's and receiver's rankings over actions within a state. The algorithm can be easily modified to study the canonical cheap talk game with a perfectly informed sender.
format Preprint
id arxiv_https___arxiv_org_abs_2207_04929
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle Information Design in Cheap Talk
Lyu, Qianjun
Suen, Wing
Theoretical Economics
An uninformed sender publicly commits to an informative experiment about an uncertain state, privately observes its outcome, and sends a cheap-talk message to a receiver. We provide an algorithm valid for arbitrary state-dependent preferences that will determine the sender's optimal experiment and his equilibrium payoff under binary state space. We give sufficient conditions for informative information transmission. These conditions depend more on marginal incentives -- how payoffs vary with the state -- than on the alignment of sender's and receiver's rankings over actions within a state. The algorithm can be easily modified to study the canonical cheap talk game with a perfectly informed sender.
title Information Design in Cheap Talk
topic Theoretical Economics
url https://arxiv.org/abs/2207.04929