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Bassi, Francesca (2010) Latent Class Analysis for Marketing Scales Development. [Working Paper] WORKING PAPER SERIES, 12/2010 . , PADOVA (Inedito)

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Abstract (english)

This paper examines the Dirichelet model describing consumer behaviour. The model estimates brand performance measures in the case of repeat purchases over a set of brands. The Dirichelet model relies on some assumptions such as stationarity and the fact that the market is unsegmented. Its formulation derives from a combination of the Negative Binomial and the Dirichelet distributions. Various estimation methods have been proposed. The original one is an iterative procedure based on the method of moments and requires as inputs only aggregated quantities, such as brand penetrations and average purchase rates. There is also an estimation method based on likelihood maximization which requires raw individual or household panel data. The method of moments deserves attention, since raw panel data are frequently not available to researchers and/or enterprises. In this paper, the Dirichelet model is used to analyze the Italian beer market as a byproduct of the main objective, which is to compare two estimation procedures available on-line for the method of moments: one based on an Excel Workbook and the other written in R.


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EPrint type:Working Paper
Anno di Pubblicazione:15 October 2010
Key Words:Dirichelet model, consumer behaviour, estimation, market segmentation.
Settori scientifico-disciplinari MIUR:Area 13 - Scienze economiche e statistiche > SECS-S/01 Statistica
Struttura di riferimento:Dipartimenti > Dipartimento di Scienze Statistiche
Codice ID:7171
Depositato il:15 Oct 2014 10:13
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