On maximum likelihood estimation for log-linear models with non-ignorable non-response
Clarke, Paul S;
Smith, Peter WF;
(2005)
On maximum likelihood estimation for log-linear models with non-ignorable non-response.
Statistics and Probability Letters, 73 (4).
pp. 441-448.
DOI: https://doi.org/10.1016/j.spl.2005.04.019
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Non-response boundary solutions occur in log-linear models with non-ignorable non-response. We prove existence and uniqueness of maximum likelihood estimates under weak conditions, and their consistency and asymptotic normality. This contrasts with findings for boundary solutions in log-linear models for sparse tables.