MARGINAL PROPENSITY TO IMPORT: The proportion of each additional dollar of household income that is used for imports. Or alternatively, this is the change in imports due to a change in disposable income. Abbreviated MPI, the marginal propensity to import plays a minor role in modifying the aggregate expenditure line and the multiplier effect. See also | imports | consumption expenditures | disposable income | consumption line | Keynesian economics | multiplier | aggregate expenditures line | marginal propensity to consume | marginal propensity to save | marginal propensity to invest |
