Author

Kosuke Morikawa

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Preprint Sep 2026

Coherent and robust Bayesian inference under informative sampling via sample-level weight models

We develop two complementary Bayesian procedures for analytic inference under informative sampling. The first constructs a coherent likelihood by modeling the sample-level distribution of the design weight given the study variable and recovering the conditional inclusion probability through the identity of Sverchkov an...

Kosuke Morikawa, Jae Kwang Kim, Won Chang · 0 citations

Review Sep 2026

Semiparametric Efficient Inference under Non-Informative Complex Survey Designs

Two features intrinsic to survey sampling complicate semiparametric efficiency analysis: design-induced dependence among sampling indicators and the randomness of finite-population targets under the superpopulation law. For general semiparametric full-data models, we show that the observed-data experiment under a broad...

Hiroki Chiba, Kosuke Morikawa · 0 citations