Comment on consensus without common knowledge

Parikh and Krasucki (Communication, consensus and knowledge, J. Econ. Theory 52 (1990), 178-189) argued that a group of agents may sometimes reach a consensus when this consensus is not common knowledge among them. We suggest a way to formalize this phenomenon in a rigorous way, by incorporating the time stages into the stare space. Journal of Economic Literature Classification Number: D80. (C) 1996 Academic Press, Inc