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Published byJeffry Lindsey Modified over 8 years ago
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Total Product Marginal Product Average Product Production or Output Elasticity TP = Q = f(L) MP L = TP L AP L = TP L E L = MP L AP L
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Total, Marginal, and Average Product of Labor, and Output Elasticity
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Marginal Revenue Product of Labor MRP L = (MP L )(MR) Marginal Resource Cost of Labor MRC L = TC L Optimal Use of Labor MRP L = MRC L
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Use of Labor is Optimal When L = 3.50
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Isoquants show combinations of two inputs that can produce the same level of output. Firms will only use combinations of two inputs that are in the economic region of production, which is defined by the portion of each isoquant that is negatively sloped.
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Isoquants
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Economic Region of Production
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Marginal Rate of Technical Substitution MRTS = - K/ L = MP L /MP K
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MRTS = -(-2.5/1) = 2.5
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Perfect Substitutes Perfect Complements
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Isocost lines represent all combinations of two inputs that a firm can purchase with the same total cost.
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MRTS = w/r
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Production Function Q = f(L, K) Q = f(hL, hK) If = h, then f has constant returns to scale. If > h, then f has increasing returns to scale. If < h, the f has decreasing returns to scale.
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Constant Returns to Scale Increasing Returns to Scale Decreasing Returns to Scale
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Cobb-Douglas Production Function Q = AK a L b Estimated using Natural Logarithms ln Q = ln A + a ln K + b ln L
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