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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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BARRIERS TO ENTRY

Institutional, government, technological, or economic restrictions on the entry of participants into a market or industry. The four primary barriers to entry are: (1) resource ownership, (2) patents and copyrights, (3) government restrictions, and (2) start-up cost. Barriers to entry are a key reason for market control and the inefficiency that results. In particular, monopoly, oligopoly, monopsony, and oligopsony often owe their market control to assorted barriers to entry. By way of contrast, perfect competition, monopolistic competition, and monopsonistic competition have few if any barriers to entry and thus little or no market control.

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Today, you are likely to spend a great deal of time going from convenience store to convenience store hoping to buy either a large flower pot shaped like a Greek urn or a small palm tree that will fit on your coffee table. Be on the lookout for defective microphones.
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A half gallon milk jug holds about $50 in pennies.
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