中级微观经济学 英文自学笔记 消费者理论(2): 效用
indifference curves斜率向下.同样是基于nonsatiation假设.看图
marginal rate of substitution (mrs) indifference curvesdownward
the equilibrium occurs at the tangency of community indifference
经济学 尼克尔森 微光经济ch03ppt chapter3 indifference curves