AP Macro 宏觀真題講解: 學生問:
Q20. the answer is (A). 供給面經濟學派今年2015, 我預測將是AP宏觀經濟學的熱門考點
(Solution):
This one is testing you Supply Side school 供給面經濟學派的 theory.. While labor productivity is one of the four economic resources, better labor productivity will lead to the AS curve to shift to the right. Real out will increase and price will do down. With no mention of nominal wage, lower price will increase the real Wage (nominal wage / price index).. Or you can assume Labor demand curve is shifting to the right (for better labor productivity), nominal wage is increasing too and real wage is further increasing (with lower price index).
