[名词解释] 边际产品转换率(Marginal rate of product transformation)
[主观题]Substitution rue 替代原则
[名词解释] Substitution rue 替代原则
[名词解释] 替代效应(Substitution effect)
[名词解释] 边际成本(Marginal cost)
[名词解释] 边际收益(Marginal revenue)
[名词解释] 边际效用( Marginal utility)
[名词解释] 边际产品(Marginal product)