Although bivariate imprecise copulas have recently attracted substantial attention, the multivariate case seems still to be open. So, it is natural test first on shock model induced copulas, a family which might most useful in various applications. We investigate some of shocks are assumed and develop corresponding set copulas. In Marshall's we get coherent distributions where bounds naturally ...

This study analyzes Chinese consumer behavior across different retail food store formats and how household demographics affect shopping behavior. A multivariate probit model with four categories of retail food store formats (wet markets, small grocery stores, super markets, and hypermarkets) in Qingdao, China is estimated. The results indicate that the new hypermarkets are substitutes for super...

For the analysis of caries experience in seven year old children we explored the association between the presence or absence of caries experience among different deciduous molars within each child. Some of the observed high associations have an etiological basis (e.g., between symmetrically opponent molars), while others (diagonally opponent molars) are assumed to be the result of the transitiv...

Electronic voting could increase citizens’ electoral participation and trust in countries characterized by fragile democratic institutions and public discredit of the political system such as those in Latin America. This paper examines attitudes towards e-voting among participants in a large scale pilot project conducted in Colombia in 2007, focusing on the perceived reliability and usability o...

In this paper we propose a robust probabilistic multivariate calibration (RPMC) model in an attempt to identify linear relationships between two sets of observed variables contaminated with outliers. Instead of the Gaussian assumptions that predominate in classical statistical models, RPMC is closely related with the multivariate Student's t-distribution over noises and latent variables. As a r...