Question

问个有关经济学的问题,对一斜率为正且先与价格轴再与数量轴相交的直线形供给曲线,其供给价格弹性（ ）A.=0 B=1 C>

Answer 1

选D<1,供给价格弹性e=(dQ/dP)/(Q/P)=（P/Q）/(dP/dQ),在图中即为：e=（P/Q）/(dP/dQ)=(|EQ|/|OQ|)/(|EQ|/|AQ|)=|AQ|/|OQ|<1.