Critics of the real business cycle theory claim that (真正的商业周期理论的批评者认为——中文由在线翻译而来,仅供参考)
A.
both real and nominal variables change during the business cycle.实际和名义变量在商业期中发生变化。
B.
the intertemporal substitution effect is too weak to account for changes in labor supply.跨期替代效应太弱,无法解释劳动力供给的变化。
C.
changes in technology cannot cause economic growth.技术变革不能造成经济增长。
D.
Both answers B and C are correct.答案B和C都是正确的。