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MARGINAL PROPENSITY TO INVEST: The proportion of each additional dollar of national income that is used for investment expenditures. Or alternatively, this is the change in investment expenditures due to a change in national income. Abbreviated MPI, the marginal propensity to invest is the slope of the investment line used in the analysis of Keynesian economics. As such, it also plays a role in the slope of the aggregate expenditure line and the multiplier effect.
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MARGINAL REVENUE, MONOPOLISTIC COMPETITION The change in total revenue resulting from a change in the quantity of output sold. Marginal revenue indicates how much extra revenue a monopolistically competitive firm receives for selling an extra unit of output. It is found by dividing the change in total revenue by the change in the quantity of output. Marginal revenue is the slope of the total revenue curve and is one of two revenue concepts derived from total revenue. The other is average revenue. To maximize profit, a monopolistically competitive firm equates marginal revenue and marginal cost.
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BLACK DISMALAPOD
[What's This?]
Today, you are likely to spend a great deal of time lost in your local discount super center seeking to buy either a how-to book on surfing the Internet or a computer that can play music and burn CDs. Be on the lookout for vindictive digital clocks with revenge on their minds.
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Mark Twain said "I wonder how much it would take to buy soap buble if there was only one in the world."
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"Things turn out best for the people who make the best of the way things turn out." -- Art Linkletter
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MBA
Master of Business Administration
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