Underreporting of purchases of port wine

Francisco Fernando and Ribeiro Ramos

Journal of Applied Statistics, 1999, vol. 26, issue 4, 485-494

Abstract: In this paper, we develop a new approach for modelling underreported Poisson counts. The parameters of the model are estimated by Markov chain Monte Carlo simulation. An application to a real data set from a Portuguese marketing survey illustrates the fruitfulness of the approach. We find that purchases of bottles of port wine increase significantly with income class and the size of the household.

Date: 1999
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DOI: 10.1080/02664769922368

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