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SAVING-INVESTMENT MODEL: A model used to identify equilibrium in Keynesian economics based on injections (investment, I) and leakages (saving, S) for the two basic sectors (household and business). Equilibrium is achieved at the intersection of the saving line, S, and the investment line, I.

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MARGINAL PHYSICAL PRODUCT

The change in the quantity of total physical product resulting from a unit change in a variable input, keeping all other inputs unchanged. Marginal physical product, usually abbreviated MPP, is found by dividing the change in total physical product by the change in the variable input. Marginal physical product, which more often goes by the name marginal product (MP), is one of two measures derived from total physical product. The other is average physical product.

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BEIGE MUNDORTLE
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Today, you are likely to spend a great deal of time flipping through the yellow pages wanting to buy either a replacement washer for your kitchen faucet or a stretchable, flexible watch band. Be on the lookout for slightly overweight pizza delivery guys.
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A scripophilist is one who collects rare stock and bond certificates, usually from extinct companies.
"The past is a foreign country; they do things differently there."

-- Leslie Poles Hartley, Writer

GDI
Gross Domestic Income
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