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Consistent,Positive Definite Covariance Matrix Estimation of Heckman
Consistent,Positive Definite Covariance Matrix Estimation of Heckman
- 한국계량경제학회
- JOURNAL OF ECONOMIC THEORY AND ECONOMETRICS
- Vol.2 No.2
-
1996.1265 - 75 (11 pages)
- 34
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