MLE with datasets from populations having shared parameters

Jun Shao and Xinyan Wang

Statistical Theory and Related Fields, 2023, vol. 7, issue 3, 213-222

Abstract: We consider maximum likelihood estimation with two or more datasets sampled from different populations with shared parameters. Although more datasets with shared parameters can increase statistical accuracy, this paper shows how to handle heterogeneity among different populations for correctness of estimation and inference. Asymptotic distributions of maximum likelihood estimators are derived under either regular cases where regularity conditions are satisfied or some non-regular situations. A bootstrap variance estimator for assessing performance of estimators and/or making large sample inference is also introduced and evaluated in a simulation study.

Date: 2023
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DOI: 10.1080/24754269.2023.2180185

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