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implicit cost related to the health club
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previously worked as an accountant, earning $3,000 a month
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Normal Profit
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same thing as earning zero economic profit
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a fixed input is an input whose quantity...
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cannot be changed as output changes in the short run
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in the short run...
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changes in input can only be brought about by a change in the quantity of variable inputs
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as the marginal physical product curve rises...
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the marginal cost curve falls
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marginal physical product
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the change in input that results from changing a variable input by one unit, holding all other inputs fixed
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the marginal physical product curve
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look to observe the law of diminishing marginal returns
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marginal physical product of a variable input, and the marginal cost
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as one goes up the other goes down
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if wage rate is constant and diminishing marginal returns have already set in...
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marginal cost increases
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average fixed costs in the long run
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are equal to zero
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the long-run average total cost (LRATC) curve shows the
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lowest unit cost at which the firm can produce any given level of output
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economies of scale are relevant to the
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long run
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law of diminishing marginal returns is relevant to the
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short run
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a rise in variable input prices will affect
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variable and marginal costs
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will not change a firm's cost curves
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change in the price of the good the firm produces
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example of market coordination
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bad weather wipes out half the pineapple crop in Hawaii, the price of pineapples rises, and consumers cut back on their purchases of pineapples
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Firms are formed when
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the sum of what individuals can produce as a team is greater than the sum of what individuals can produce working alone