Economics imperialism

The emergence of such analysis has been attributed to a method that, like that of the physical sciences, permits refutable implications testable by standard statistical techniques. Central to that approach are "[t]he combined postulates of maximizing behavior, stable preferences and market equilibrium, applied relentlessly and unflinchingly". It has been asserted that these and a focus on economic efficiency have been ignored in other social sciences and have "allowed economics to invade intellectual territory that was previously deemed to be outside the discipline's realm".

Justin Fox suggests that other social sciences have also made forays into economics, such as psychology (with Daniel Kahnemann and Amos Tversky's work on prospect theory), economic anthropology and more recent economic sociology.

Colonization of other disciplines

Critics argue that the trend of using economic theories to analyze topics in other disciplines causes an over-reliance on economic rationales for human behavior, neglects other explanations, narrows the lens through which policymakers make decisions, and thus colonizes other disciplines. Some academics from other disciplines argue that the need for economic imperialism, or application of positive economic theory to new areas, is built into the reputational structure of the mainstream US academic discipline of economics.