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July 18, 2025 

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CASH: the common term for paper currency and metal coins components of the money supply. Cash includes the foldable green paper with portraits of famous dead people, and those shiny metal discs with raised imprints of famous dead people. Cash is often divided into the "cash in circulation" which is what the nonbank public uses for purchases, and "vault cash" which is what banks have stashed away in the large, highly-secured, vaults. Cash in circulation is part of the money supply. Vault cash is part of bank reserves.

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FOUR-SECTOR KEYNESIAN MODEL: A model used to identify equilibrium in Keynesian economics based on aggregate expenditures by all four sectors (household, business, government, and foreign). Equilibrium is achieved at the intersection of the aggregate expenditures line, AE = C + I + G + (X - M), and the 45-degree line, Y = AE. This is the complete Keynesian aggregate expenditures model can be used to analyzed the impact of the foreign sector on aggregate expenditures and equilibrium.

     See also | Keynesian economics | Keynesian equilibrium | consumption line | aggregate expenditures line | 45-degree line | household sector | business sector | government sector | foreign sector | fiscal policy | two-sector Keynesian model | three-sector Keynesian model |


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FOUR-SECTOR KEYNESIAN MODEL, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2025. [Accessed: July 18, 2025].


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RISK

The quantitative probability of different future outcomes occurring. The assignment of probabilities can be subjective (based on a "feeling") or objective (based on historical data). Risk is related to the concept of uncertainty, which is simply not knowing what the future holds. People have three alternative preferences when confronting risk -- risk aversion, risk neutrality, and risk loving. Risk aversion is key to the provision of insurance.

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Today, you are likely to spend a great deal of time flipping through mail order catalogs trying to buy either a flower arrangement for your aunt or a birthday greeting card for your uncle. Be on the lookout for rusty deck screws.
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On a typical day, the United States Mint produces over $1 million worth of dimes.
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