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VAULT CASH: Paper currency and metal coins possessed by a commercial bank, either stored in the actual bank vault or temporarily resting teller drawers. Vault cash is primarily used to facilitate daily bank transactions (that is, cashing checks), and together with Federal Reserve deposits make up legal bank reserves.

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MARGINAL PROPENSITY TO INVEST

The change in business investment expenditures induced by a change in income or production (national income or gross domestic product). The marginal propensity to invest (abbreviated MPI) is another term for the slope of the investment line and is calculated as the change in investment divided by the change in income or production. The MPI plays a role in Keynesian economics. It augments the slope of the aggregate expenditures line and is part to the multiplier process. A related marginal measure is the marginal propensity to consume.

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Today, you are likely to spend a great deal of time looking for a downtown retail store seeking to buy either a printer that works with your stockpile of ink cartridges or income tax software. Be on the lookout for gnomes hiding in cypress trees.
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Helping spur the U.S. industrial revolution, Thomas Edison patented nearly 1300 inventions, 300 of which came out of his Menlo Park "invention factory" during a four-year period.
"Defeat is simply a signal to press onward."

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