← Search Econometrica 1997 Asymptotic Bias for Quasi-Maximum Likelihood Estimators in Models with Conditional Heteroskedasticity Douglas G. Steigerwald; Whitney K. Newey Sources openalex 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 ✓