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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Marginal rate of technical substitution ： ウィキペディア英語版 Marginal rate of technical substitution In microeconomic theory, the Marginal Rate of Technical Substitution (MRTS)—or Technical Rate of Substitution (TRS)—is the amount by which the quantity of one input has to be reduced ($-\backslash Delta\; x\_2$) when one extra unit of another input is used ($\backslash Delta\; x\_1\; =\; 1$), so that output remains constant ($y\; =\; \backslash bar$). $MRTS(x\_1,x\_2)\; =-\backslash frac\; =\; \backslash frac$ where $MP\_1$ and $MP\_2$ are the marginal products of input 1 and input 2, respectively. Along an isoquant, the MRTS shows the rate at which one input (e.g. capital or labor) may be substituted for another, while maintaining the same level of output. Thus the MRTS is the absolute value of the slope of an isoquant at the point in question. When relative input usages are optimal, the marginal rate of technical substitution is equal to the relative unit costs of the inputs, and the slope of the isoquant at the chosen point equals the slope of the isocost curve (see Conditional factor demands). ==See also== *Marginal rate of substitution (the same concept on consumption side) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Marginal rate of technical substitution」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.