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Define Technological change
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A change in the ability of a firm to produce a given level of output with a given quantity of inputs.
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Short run
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The period of time during which at least one of a firm's inputs is fixed.
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Long run
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The period of time in which a firm can vary all its inputs, adopt new technology and increase or decrease the size of its physical plant.
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Total Cost
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The cost of all the inputs a firm uses in production.
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Variable cost
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Costs that change as output changes.
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Fixed cost
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Costs that remain constant as output changes.
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What is the formula for Total Cost?
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TC = FC + VC (divide everything by Q to get averages)
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What is the formula for Average Total Cost in terms of the other averages?
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ATC = AFC + AVC
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Production function
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The relationship between the inputs employed by a firm and the maximum output it can produce with those inputs.
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Marginal product of labor
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Additional output a firm produces as a result of hiring one more worker.
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Law of diminishing returns
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The principle that, at some point, adding more of a variable input, such as labor, to the same amount of a fixed input, such as capital, will cause the marginal product of the variable input to decline.
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Average product of labor
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The total output produced by a firm divided by the quantity of workers.
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Marginal cost
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the change in a firm's total cost from producing one more unit of a good or service. (Whenever it is "marginal", you have to say "one more unit" as we are looking at the margin)
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Average fixed cost
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Fixed cost divided by the quantity of output produced.
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Average variable cost
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Variable cost divided by the quantity of output produced.
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Constant returns to scale
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The situation in which a firm's long -run average costs remain unchanged as it increases output.
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Diseconomies of scale
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The situation in which a firm's long-run average costs rise as the firm increases output.
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Minimum efficient scale
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The level of output at which all economies of scale are exhausted.
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How do you calculate ATC in terms of TC?
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TC/Q
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Wherever Average Fixed Cost and Average Variable Cost intersect, what does it have to align with?
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Minimum of the ATC curve
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Draw production function (short run)
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Draw new graph below, X values are the same, Y values = above X value divided by above Y (Fixed Cost divided by Quantity)
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Draw Marginal Product (of labor) curve
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Draw new graph below, X values are the same, Y values = above X value divided by above Y (Variable Cost divided by quantity)
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Draw a curve representing labor and quantity
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Draw new graph below, X values are the same, Y values = above X value divided by above Y (Total Cost divided by quantity)
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Draw a variable cost curve
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ATC regular, ATC in economies of scale graph, or ATC combined with Marginal Cost, LAC
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Draw Variable cost and Fixed cost overlaid on top of one another
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Capital = fixed inputs, symbol K
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Draw Variable Cost, Fixed Cost and TC overlaid on top of one another
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Labor refers to variable inputs, symbol L
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How do you derive Average Fixed Cost graph from Fixed Cost graph?
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Marginal Cost and ATC
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How do you derive Average Variable Cost graph from Variable Cost graph?
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How do you derive Average Total graph from Total Cost graph?
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Draw Total Cost (with the rays necessary for Average Total Cost), Fixed Cost, and Variable Cost all on the same graph
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Draw ATC, AFC and AVC all on the same graph
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QMES is for what graph?
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What does Capital refer to? What is its symbol
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What does Labor refer to? What is its symbol
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At QMES, what two values are equal?
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