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KINKED-DEMAND CURVE ANALYSIS: An analysis that seeks to explain rigid oligopolistic prices using the kinked-demand curve. The kinked demand curve contains two distinct segments, one for higher prices that is more elastic and one for lower prices that is less elastic. The corresponding marginal revenue curve contains a vertical segment at the existing or initial quantity. Because a profit-maximizing oligopolistic firm equates marginal cost to marginal revenue, marginal cost also can take on a range of values at the existing quantity. In other words, marginal cost can increase or decrease without inducing a profit-maximizing oligopolistic firm to change price or quantity.

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MARKET FOR LEMONS

A market adversely selects only lower quality products for exchange. The market for lemons is an illustration of adverse selection that results from asymmetric information. In this market, because buyers have limited information they offer an average price based on the average quality of the goods. Sellers, however, with better information select to sell lower quality products but not higher quality ones. Two methods of address this problem are signalling and screening. Two related information problems are moral hazard and the principal-agent problem.

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Today, you are likely to spend a great deal of time watching infomercials hoping to buy either a stretchable, flexible watch band or high-gloss photo paper that works with your printer. Be on the lookout for fairy dust that tastes like salt.
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The 1909 Lincoln penny was the first U.S. coin with the likeness of a U.S. President.
"In a time of drastic change, it is the learners who inherit the future. "

-- Eric Hoffer, philosopher

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