Marginal Propensity To Import

The marginal propensity to import (MPM) is the change in imports induced by a change in disposable income.
The idea is that rising income for businesses and households spurs greater demand for goods from abroad and vice versa.
Nations that consume more imports as their population's income increases have a significant impact on global trade.
Developed economies with sufficient natural resources within their borders typically have a lower MPM than developing countries without these resources.