Marginal maximum likelihood estimation of SAR models with missing data

Thomas Suesse

Computational Statistics & Data Analysis, 2018, vol. 120, issue C, 98-110

Abstract: Maximum likelihood (ML) estimation of simultaneous autocorrelation models is well known. Under the presence of missing data, estimation is not straightforward, due to the implied dependence of all units. The EM algorithm is the standard approach to accomplish ML estimation in this case. An alternative approach is considered, the method of maximising the marginal likelihood. At first glance the method is computationally complex due to inversion of large matrices that are of the same size as the complete data, but these can be avoided, leading to an algorithm that is usually much faster than the EM algorithm and without typical EM convergence issues. Another approximate method is also proposed that serves as an alternative, for example when the contiguity matrix is dense. The methods are illustrated using a well known data set on house prices with 25,357 units.

Keywords: SAR model; EM algorithm; Marginal likelihood; Missing data; Maximum likelihood (search for similar items in EconPapers)
Date: 2018
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Citations: View citations in EconPapers (5)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:csdana:v:120:y:2018:i:c:p:98-110

DOI: 10.1016/j.csda.2017.11.004

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