摘要
Wepropose a constrained generalised method of moments(CGMM)for enhancing the efficiency of estimators in meta-analysis in which some studies do not measure all covariates associated with the response or outcome.Under some assumptions,weshow that the proposedCGMMestimators have good asymptotic properties.Wealso demonstrate the effectiveness of the proposed method through simulation studies with fixed sample sizes.
基金
Research supported by the National Natural Science Foundation of China[grant 11831008]
theU.S.National Science Foundation-Division ofMathematical Sciences(US)[grant DMS-1612873].
