For the two seemingly unrelated regression system, this paper proposed a new type of estimator called pre-test principal components estimator (PTPCE) and discussed some properties of PTPCE.
基金Supported by the National Natural Science Foundation of China(11661003)the Natural Science Foundation of Jiangxi Province(20161BAB201033,20192BAB201006)Science and Technology Project of Education Department of Jiangxi Province(GJJ150582,GJJ160559)。
文摘For the two seemingly unrelated regression system, this paper proposed a new type of estimator called pre-test principal components estimator (PTPCE) and discussed some properties of PTPCE.