GINI INDEX: One of the most common measures of income or wealth distributions. It indicates how equal, or unequal, income, wealth, or similar stuff is distributed among the population. If you happen to come across a Gini index, you'll see that it falls in the range of 0 to 1. A value of 0 tells you that the distribution is perfectly equal, that is, everyone has exactly the same amount of income, wealth, or whatever. A value of 1, however, tells you that the distribution is what we could call perfectly unequal, that is, one person has everything and everyone else has nothing.

     See also | income distribution | wealth distribution | income | wealth | third rule of inequality | equity | Lorenz curve |

GINI INDEX, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2024. [Accessed: July 26, 2024].

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The change in business investment expenditures induced by a change in income or production (national income or gross domestic product). The marginal propensity to invest (abbreviated MPI) is another term for the slope of the investment line and is calculated as the change in investment divided by the change in income or production. The MPI plays a role in Keynesian economics. It augments the slope of the aggregate expenditures line and is part to the multiplier process. A related marginal measure is the marginal propensity to consume.

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