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SEVENTH RULE OF COMPLEXITY: The seventh of seven basic rules of the economy. It is the observation that the world is complex, that every action has direct and often intended consequences and indirect and probably unintended effects (that is, cause and effect). A few of the more noted illustrations of this seventh rule are the circular flow (especially the expenditure multiplier) and market failures (especially externalities).

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MARGINAL PROPENSITY TO INVEST

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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Today, you are likely to spend a great deal of time strolling through a department store hoping to buy either a solid oak entertainment center or a remote controlled ceiling fan. Be on the lookout for rusty deck screws.
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The word "fiscal" is derived from a Latin word meaning "moneybag."
"Stand up to your obstacles and do something about them. You will find that they haven't half the strength you think they have."

-- Norman Vincent Peale

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