Title

Common Learning

Document Type

Discussion Paper

Publication Date

8-1-2006

CFDP Number

1575

CFDP Pages

34

Abstract

Consider two agents who learn the value of an unknown parameter by observing a sequence of private signals. The signals are independent and identically distributed across time but not necessarily agents. Does it follow that the agents will commonly learn its value, i.e., that the true value of the parameter will become (approximate) common-knowledge? We show that the answer is affirmative when each agent’s signal space is finite and show by example that common learning can fail when observations come from a countably infinite signal space.

This document is currently not available here.

Share

COinS