hedonic treadmill
n.β Β«Firebaugh tested what he refers to as the hedonic treadmill hypothesis, which uses a comparison of age-based cohorts. The hedonic treadmill requires a specific type of relative income effectβone where “keeping up with the Joneses” means continually increasing oneβs own income, because we can be sure that the Joneses are increasing theirs.Β» ββCan money buy happiness?” Medical News Today Aug. 14, 2005. (source: Double-Tongued Dictionary)