最近在就按范里安的现代观点,在做一老师给的习题的时候,发现有很多难题,这是其中一道,
ambrose's utility function U(x,y)=x+4y*二分之1次方,the price of x is 1 ,and the price of y is 2 ,if hi income risesfrom 100 to 150 ,his consumption of y increases by more than 10% but lsee than 50% 这道题是怎么计算出这样一个结果的,,,我想了半天也没想到,,请有知道的达人给小弟我一个解答,,,不胜感激!!