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楼主: zhangminzip
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[原创博文] 求sas做广义矩估计GMM的程序 |
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已卖:750份资源 讲师 15%
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回帖推荐GMM Estimation
If the form of the heteroscedasticity is unknown, generalized method of moments
estimation (GMM) can be used. The following PROC MODEL statements use GMM
to estimate the example model used in the preceding section:
proc model data=test;
parms b1 0.1 b2 0.9;
y = 250 * ( exp( -b1 * t ) - exp( -b2 * t ) )
fit y / gmm;
instruments b1 b2;
run;
GMM is an instrumental method, so ...
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