【多选题】
小型宏观经济计量模型 中，内生变量是：___
A. Ct
B. Yt
C. It
D. Yt-1
E. Gt
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答案
ABC
解析
暂无解析
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【多选题】
用两阶段最小二乘法估计结构方程一般要求___。
A. 结构方程必须是过度识别的
B. 结构方程中的随机误差项满足线性模型的基本假定
C. 相应的简化式方程中的随机误差项也满足线性模型的基本假定
D. 模型中的所有前定变量之间不存在严重的多重共线性
E. 样本容量足够大
【多选题】
下列关于联立方程模型的识别条件，表述正确的有 ___
A. 阶条件成立，则秩条件一定成立
B. 秩条件成立，则一定可以识别
C. 秩条件成立，则不一定可以识别
D. 如果能从简化式参数计算出某随机方程的结构式参数，则该随机方程是可识别的
E. 如果模型中某个随机方程具有唯一的统计形式，则这个方程是可识别的
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