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LOCATION THEORY: A theoretical framework for studying the location decisions made of firms and households based on transportation cost and spatial differences in the accessibility of inputs and markets for outputs. Location theory, developed with noted contributions from August Losch, Alfred Weber, Johann von Thunen, Walter Christaller, and Walter Isard, explicitly considers the cost of transportation in the production and consumption choices made by firms and households. Location theory has been used to explain urban density, labor migration, and land use.

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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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BROWN PRAGMATOX
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Today, you are likely to spend a great deal of time at a going out of business sale looking to buy either a large, stuffed giraffe or a birthday greeting card for your aunt. Be on the lookout for strangers with large satchels of used undergarments.
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The portrait on the quarter is a more accurate likeness of George Washington than that on the dollar bill.
"We succeed in enterprises (that) demand the positive qualities we possess, but we excel in those (that) can also make use of our defects."

-- Alexis de Tocqueville, Statesman

ARMA
Autoregressive Moving Average
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