Decision rules revealing commonly known events

Tymofiy Mylovanov*, Andriy Zapechelnyuk

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


We provide a sufficient condition under which an uninformed principal can infer any information that is common knowledge among two experts, regardless of the structure of the parties' beliefs. The condition requires that the bias of each expert is less than the radius of the smallest ball containing the action space.

Original languageEnglish
Pages (from-to)8-10
Number of pages3
JournalEconomics Letters
Issue number1
Early online date10 Jan 2013
Publication statusPublished - Apr 2013


  • communication
  • multi-sender cheap talk
  • multidimensional cheap talk


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