← Search Econometrica Vol. 32 No. 1/2 1964 The Bias and Moment Matrix of a Mixed Regression Estimator A. L. Nagar; Nanak Kakwani DOI10.2307/1913742 Volume32 Issue1/2 Pages174 Sources semanticscholar openalex crossref Cite APA 7 MLA 9 Chicago (author–date) Harvard Elsevier Harvard (JFE, JBF…) The Accounting Review Academy of Management American Marketing Association INFORMS (Management Science) Copy citation Copied ✓