One of the main issues on the research agenda regarding stated preference methods concerns the heterogeneity of preferences either within or between individuals. We present a multilevel mixed model (MMM) to capture heterogeneity in deterministic utility components, instead of simply leaving them...

This paper presents a choice experiment analyzing the consumers' preferences towards a policy for replacing conventional electricity with electricity generated from forest biomass. The results show that consumers specially prefer the effects related to the lower risk of forest fires and to the...