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SCARCITY RENT: The marginal opportunity cost imposed on future generations by extracting one more unit of a resource today. Scarcity rent is one of two costs the extraction of a finite resource imposes on society. The other is marginal extraction cost--the opportunity cost of resources employed in the extraction activity. Scarcity rent is the cost of "using up" a finite resource because benefits of the extracted resource are unavailable to future generations. Efficiency is achieved when the resource price--the benefit society is willing to pay for the resource today--is equal to the sum of marginal extraction cost and scarcity rent.
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INJECTIONS-LEAKAGES MODEL A macroeconomic model that balances non-consumption expenditures on production (injections) and non-consumption uses of income (leakages) that is used to identify the equilibrium level of, and analyze disruptions to, aggregate production and income. The injections-leakages model is based on the principles of Keynesian economics and provides an alternative to the standard aggregate expenditures (Keynesian cross) analysis. The three injections included in the model are investment expenditures, government purchases, and exports. The three leakages included in the model are saving, taxes, and imports. Three variations are the two-sector injections-leakages model (or saving-investment model), three-sector injections-leakages model, and four-sector injections-leakages model.
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"After climbing a great hill, one finds many more hills to climb. " -- Nelson Mandela, president of South Africa
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The Wide, Wide World Of FOREIGN TRADETwo blocks directly south of the Mega-Mart Discount Emporium we'll find that Natural Ned's Nursery and Garden Center is having a grand opening celebration. I'd like to saunter over to check out their sundials -- a valuable, and long sought after acquisition for my backyard garden. In fact, Natural Ned's Nursery and Garden Center has a new shipment of sundials imported from the sundial capital of the world -- the Republic of Northwest Queoldiola. If I'm going to get a sundial, I should get the best, right? Northwest Queoldiola produces the finest, least expensive, and most technologically advanced sundials in the world. However, Mega-Mart Discount Warehouse Super Center has an ample supply of good old American-made sundials. They're a little more expensive and not quite as good, but they're made in the U. S. of A. by good old Americans. What a dilemma!
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PINK FADFLY
[What's This?]
Today, you are likely to spend a great deal of time browsing through a long list of dot com websites wanting to buy either a large, stuffed kitty cat or a cross-cut paper shredder. Be on the lookout for broken fingernail clippers.
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This isn't me! What am I?
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The earliest known use of paper currency was about 1270 in China during the rule of Kubla Khan.
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MMSE
Minimun Mean Square Error
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