Is Honesty Rational?

Abstract According to the Maxim of Quality, rational agents tend speak honestly. Due influence Grice, a connection between linguistic rationality and honesty is often taken for granted. However, not obvious: structural in language use does require honesty, any more than it requires dishonesty. In particular, Quality follow from Cooperative Principle rationality. But then what honest speech? I propose move discussion context Stalnaker's theory assertion. From this perspective, although there no most way behave, follows structure Stalnakerian conversations if interlocutors are sensitive credibility. case, built on expectation reciprocity, cooperativity an outcome precondition communication. A benefit my that account falls under general view interactive familiar theoretical economics.