autonomous consumption  consumption that is independ­ent of income
average propensity to consume(APC)  the proportion of disposable income spent for consumption
average propensity to save (APS)  the proportion of disposable income saved
consumption function  the relationship between disposable income and consumption
dissaving  spending financed by borrowing or using savings
marginal propensity to consume (MPC)  the change in consumption as a proportion of the change in disposable income
marginal propensity to import (MPI)  the change in imports as a proportion of the change in income
marginal propensity to save (MPS)  the change in saving as a proportion of the change in disposable income
saving function  the relationship between disposable income and saving
wealth  the value of all assets owned by a household