Neo-functionalism emerged in the 1980s as a revision and expansion of Parsonian functionalism. Jeffrey Alexander and Paul Colomy are the main proponents of neo-functionalism in the US. They define it as a self-critical strand of functional theory that broadens its scope while retaining its theoretical core. Specifically, neo-functionalism aims to incorporate conflict, subjective meaning, contingency, and creativity into functionalism, address its anti-individualism and resistance to change, and analyze systems as tendencies rather than givens. It also pushes functionalism to the left by rejecting optimism about modernity and emphasizing democracy.