题目内容：
假定某国经济可由下式描述：
C=90+0.9Y
I=200-1000i
L=Y-10000i
若比例所得税率为33%,政府购买为710美元,实际货币供给为500美元,求:
（1）最初的投资总额和赤字水平?
（2）货币供给量如何变化才能使该国政府达到预算平衡?
参考答案：
选择题：假定某国经济可由下式描述: C=90＋0.9Y I=200－1000i L=Y－10000i 若比例所得税率为33%
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