边际效益递减原理
based on Law of Diminishing Marginal Utility
管制之边际效益
Marginal benefits of control
边际收益递增
increasing marginal revenue
边际效用递减
diminishing marginal utility
Marginal effect descending
deminishing marginal utility
边际效用递减法则
law of diminishing marginal utility
边际效用递减规律
the law of diminishing marginal utility
边际效用递减率
diminishingmarginal utility