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SHORT-RUN SUPPLY CURVE: For a perfectly competitive firm, the marginal cost curve that lies above the average variable cost curve. This segment of the marginal cost guides a perfectly competitive firm's profit maximizing production as it equates price to marginal cost. Because the marginal cost curve is positively sloped (due to the law of diminishing marginal returns), each firm's supply curve and the market supply curve are also positively sloped. The law of diminishing marginal returns thus provides an explanation for the law of supply. However, this only works for firms with NO market control. Monopoly, monopolistic competition, and oligopoly, with market control, do not achieve the same result.

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SEIGNIORAGE

The difference between the face value, or value in exchange, of money and the cost of producing the money. This seigniorage is effectively the profit government generates from producing currency--printing paper bills or minting metal coins. That is, government effectively "makes money" by making money.

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Today, you are likely to spend a great deal of time waiting for visits from door-to-door solicitors wanting to buy either clothing for your kitty cats or a set of luggage without wheels. Be on the lookout for slow moving vehicles with darkened windows.
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Ragnar Frisch and Jan Tinbergen were the 1st Nobel Prize winners in Economics in 1969.
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