Cognitive inertia refers the tendency for beliefs or sets of beliefs to endure once formed. In particular, cognitive inertia describes the human inclination to rely on familiar assumptions and exhibit a reluctance and/or inability to revise those assumptions, even when the evidence supporting them no longer exists or when other evidence would question their accuracy. The term is employed in the managerial and organizational sciences to describe the commonly observed phenomenon whereby managers fail to update and revise their understanding of a situation when that situation changes, a phenomenon that acts as a psychological barrier to organizational change. The notion of cognitive inertia is related to similar ideas in the fields of social psychology and behavioral decision theory, including cognitive dissonance, belief perseverance, confirmation bias, and escalation of commitment.
