【单选题】【消耗次数：1】
边际收益是指（ ）。
①
增加一单位产量所导致的总产量的增加量
②
增加一单位某投入要素引起的总成本增加量
③
增加一单位产品所引起的总收益的增加量
④
增加一单位某投入要素引起的总收益的增加量
参考答案：
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相关题目
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在维持产量不变的前提下，如果企业增加2个单位的劳动投入量就可以减少4个单位的资本投入量，则有
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MRTSLK=2，且MPL/ MPK=2;
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