INERTIA

[noun] [U] - lack of activity or interest; unwillingness to make an effort to do anythingCompanies still benefit from the inertia which leaves insurance policies with the same companies year after year.The organization is stifled by bureaucratic inertia and a failure to change to meet the needs of modern society.An inertia reel safety/seat belt is one which allows you to move about but holds you firmly in position if it is suddenly pulled.(UK) Inertia selling (US negative marketing) is when, if you don't actively refuse something, a company behaves as though you have agreed to buy it.