Simon Kuznets originated a puzzle of this behavior in finding that a long-run average metric for it remained constant at 0.9. Growing inequality shifts reference frames for this behavior, resulting in increased "cascades" of it, according to Robert Frank. (10[1])In a "choice theory" of this behavior, bliss points cannot occur at the origin due to the assumption of LNS. Rational agents do not increase this behavior (-5[1])in response to government (10[1])debt financing in predictions of Ricardian equivalence. (10[1])This behavior's "autonomous" form is the y-intercept on graphs plotting it against disposable income; Keynes termed those (10[1])graphs' (10[1])slopes the marginal propensity of (10[1])this behavior. (10[1])A price index named for this behavior is the most widely used measure for inflation. For 10 points, budget constraints limit what behavior, which is contrasted with saving? ■END■ (10[1])