Learning from prices: Public communication and welfare

Manuel Amador, Pierre Olivier Weill

Research output: Contribution to journalArticlepeer-review

84 Scopus citations


We study the effect of releasing public information about productivity or monetary shocks using a micro-founded macroeconomic model in which agents learn from the distribution of nominal prices. While a public release has the direct beneficial effect of providing new information, it also has the indirect adverse effect of reducing the informational efficiency of the price system. We show that the negative indirect effect can dominate. Thus, the public information release may increase uncertainty about the monetary shock and reduce welfare. We find that the optimal communication policy is always to release either all or none of the information.

Original languageEnglish (US)
Pages (from-to)866-907
Number of pages42
JournalJournal of Political Economy
Issue number5
StatePublished - Oct 2010


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