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LERNER INDEX: The difference between price (p) and marginal cost (mc) as a fraction of price, that is [p-mc]/p. The Lerner index is usually taken as an indicator of market power because the larger the index, the larger the difference between price and marginal cost, that is, the larger the distance between the price and the competitive price. The Lerner index depends on the elasticity of demand. The Lerner index is also called the price-cost margin.

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TERMS OF TRADE

The rate at which goods are traded, either between individuals or between nations. It is the quantity of one good exchanged per unit of another good. The terms of trade is essentially the price. But the price is stated in terms of the quantity of another good. Like any market price, the terms of trade is based on what the buyers are willing to pay and what the sellers are willing to accept. The terms of trade between any two countries is based on the relative opportunity cost in each country.

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Today, you are likely to spend a great deal of time looking for the new strip mall out on the highway hoping to buy either a set of serrated steak knives, with durable plastic handles or a pair of blue silicon oven mitts. Be on the lookout for spoiled cheese hiding under your bed hatching conspiracies against humanity.
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On a typical day, the United States Mint produces over $1 million worth of dimes.
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