This paper studies some benefits of ignoring those who disagree with you . We model a  decision maker who draws a signal about the (real-valued) state of the world from a collection of unbiased sources of heterogeneous quality. Exclusively sampling signals close to the prior expectation can be beneficial , as they are more likely high quality. Since echo chambers are a rational response to uncertain information quality, eliminating them can backfire. Signals close to the prior expectation can move beliefs further than more contrary views; limiting the ability to ignore opposing views can make beliefs less accurate and reduce the extent to which signals are heeded .
This paper shows that echo chambers are a rational response to uncertain information quality, and that eliminating them can result in less accurate beliefs . We model a Bayesian decision maker who draws a signal about the (real-valued) state of the world from a collection of unbiased sources of heterogeneous quality. We show that exclusively sampling signals close to the prior expectation can improve accuracy , as they are more likely high quality. Signals close to the prior expectation can move beliefs further than more contrary views; the ability to ignore those with opposing beliefs makes one more responsive to others' views, since it increases their perceived accuracy. The optimal echo chamber balances the credibility of views similar to one's own against the usefulness of those further away .
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studies some benefits of ignoring those who disagree with you
shows that echo chambers are a rational response to uncertain information quality, and that eliminating them can result in less accurate beliefs
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Bayesian
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Exclusively
We show that exclusively
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be beneficial
improve accuracy
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Since echo chambers are a rational response to uncertain information quality, eliminating them can backfire.
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limiting
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opposing views can make beliefs less accurate and reduce the extent to which signals are heeded
those with opposing beliefs makes one more responsive to others' views, since it increases their perceived accuracy. The optimal echo chamber balances the credibility of views similar to one's own against the usefulness of those further away