“…Indeed one of the most lively debates in the social sciences is the role of rationality and intentionality as a predictor of behavior (McCarty and Meirowitz, 2007, p. 6).Recall the two basic assumptions of game theory: rationality (utility maximization) and common knowledge (Gates and Humes, 1997, p. 12n).The rationality assumption has been used most extensively and has seen its fullest flowering in economics. But there is nothing distinctly economic about rational behavior, as we shall see (Shepsle and Bonchek, 1997, p. 15).Perhaps the most serious intellectual threat to the rational choice approach comes from empirical findings that challenge the rationality assumption (Lohmann, 1995, p. 128).Of course, this challenge to rational choice theories only makes sense if individual theoretical statements, such as the rational actor assumption, can be tested in a meaningful sense (Diermeier, 1995, p. 62).Rational choice theory is based on two central assumptions: methodological individualism and purposeful action ... Purposeful action requires further clarification because it lies at the heart of the rationality assumption on which this entire research program is founded (Doron and Sened, 2001, pp. 20–1).…”