Autori
Cazzaro, ManuelaNicolussi, FedericaTitolo
Context-specific independencies in hierarchical multinomial marginal modelsPeriodico
Statistical methods & applications : Journal of the Italian Statistical SocietyAnno:
2020 - Volume:
29 - Fascicolo:
4 - Pagina iniziale:
767 - Pagina finale:
786This paper focuses on studying the relationships among a set of categorical (ordinal) variables collected in a contingency table. Besides the marginal and conditional (in)dependencies, thoroughly analyzed in the literature, we consider the context-specific independencies holding only in a subspace of the outcome space of the conditioning variables. To this purpose we consider the hierarchical multinomial marginal models and we provide several original results about the representation of context-specific independencies through these models. The theoretical results are supported by an application concerning the innovation degree of Italian enterprises.
SICI: 1618-2510(2020)29:4<767:CIIHMM>2.0.ZU;2-P
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