Finite sample properties of multiple imputation estimators under the linear regression model are studied. The exact bias of the multiple imputation variance estimator is presented. A method of reducing the bias is presented and simulation is used to make comparisons. We also show that the suggested method can be used for a general class of linear estimators.
"Finite sample properties of multiple imputation estimators." Ann. Statist. 32 (2) 766 - 783, April 2004. https://doi.org/10.1214/009053604000000175