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OPEN SHOP: An employment arrangement in which workers of a firm are free to join or not join a union because employment is unrelated to union membership. Because an open shop tends to limit the proportion of a firm's employees represented, this can significantly dilute a labor union's market control. Open shops are established in states that have right-to-work laws.

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AVERAGE FACTOR COST AND MARGINAL FACTOR COST

A mathematical connection between average factor cost and marginal factor cost stating that the change in the average factor cost depends on a comparison between average factor cost and marginal factor cost. For perfect competition, with no market control, marginal factor cost is equal to average factor cost, and average factor cost does not change. For monopsony and other firms with market control, marginal factor cost is greater than average factor cost, and average factor cost rises.

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Today, you are likely to spend a great deal of time wandering around the downtown area looking to buy either a three-hole paper punch or decorative picture frames. Be on the lookout for cardboard boxes.
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The 22.6% decline in stock prices on October 19, 1987 was larger than the infamous 12.8% decline on October 29, 1929.
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