Colombo, Sergio; Hanley, Nick; Louviere, Jordan - 2008
literature. The need to account for respondents’ preference heterogeneity insuch models has motivated researchers in agricultural … publishedliterature these models incorporate heterogeneity in preferences through the systematic componentof utility. An alternative … approach is to investigate heterogeneity through the random component ofutility, and covariance heterogeneity models are one …