Use your understanding of the IS-LM-BP model to answer this question. Assume at the initial equilibrium that output is above the target level of output and that a private payment surplus exists. Given this information, we know with certainty that which of the following policy actions will simultaneously achieve both internal and external balance? a) increase in the nominal money supply b) reduction in the nominal money supply c) increase in government expenditures d) reduction in government expenditures e) more information is needed to answer this question 题目说一开始的均衡产出在目标的水准之上，接下来的意思我就不懂了 题目是要问什麽?? --

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