如果你负责一个开放小国宏观经济政策的制定,下列事件将对你实现外部平衡的目标产生哪些实质性的影响? a.在你国内发现大量的铀矿资源。 b.你国主要的出口物资——铜的世界价格发生了永久性的上升。 c.铜的世界价格暂时上升。 d.世界石油价格暂时上升。 If you were in charge of macroeconomic policies in a small open economy what qualitative effect would each of the following events have on your target for external balance? a.Large deposits of uranium are discovered in the interior of your country. b.The world price of your main export good,copper,rises permanently. c.The world price of copper rises temporarily. d.There is a temporary rise in the world price of oil.