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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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MACROECONOMICS

The branch of economics that studies the entire economy, especially such topics as aggregate production, unemployment, inflation, and business cycles. It can be thought of as the study of the economic forest, as compared to microeconomics, which is study of the economic trees.

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Today, you are likely to spend a great deal of time at a dollar discount store wanting to buy either a really, really exciting, action-filled video game or a coffee cup commemorating the moon landing. Be on the lookout for telephone calls from former employers.
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In the late 1800s and early 1900s, almost 2 million children were employed as factory workers.
"When one door closes another door opens; but we do often look so long and so regretfully upon the closed door, that we do not see the ones which open for us. "

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