“An economic model of behaviour that lays any claim at all to predictive power must rely on the uniformity of human nature summarized in Homo economicus, or economic self-interest objectively defined. Such a model has served economists well; the model in all its variations explains much of what we know about the political-governmental sphere of human action in addition to the much more that we know and can explain about human action in market relationships… [and] yields meaningful predictions…”
“Constitutional revolution in Democracy” in Geoffrey Brennan and James M. Buchanan The Reason of Rules: Constitutional Political Economy