Meetings in deadlock and decision makers with interperception

In this paper, treating situations of group decision making with interperce ption by decision makers, we provide two propositions that are related to a voiding time-consuming events in the situations. Regarding a meeting with o dd number of decision makers and majority rule, one shows that if it is ins ide common knowledge among the decision makers that their emotions are stab le, then it cannot be inside common knowledge that the meeting is in a dead lock. Another implies that if the decision makers believes that their emoti ons are stable, then there exists a decision maker who believes that the me eting is not in a deadlock. We can see from these propositions that stabili ty of decision makers' emotions plays important role in smooth progress of a meeting, even if the meeting is with incomplete information. (C) 2000 Els evier Science Inc. All rights reserved.