A new approach is developed for the treatment of 'Don't Know' (DK) responses, within Choice Experiments. A DK option is motivated by the need to allow respondents the opportunity to express uncertainty. Our model explains a DK using an entropy measure of the similarity between options given to...

This study uses an experimental vignette methodology to investigate and compare, for the first time, consumer food waste (FW) decisions in the UK and Thailand. Specifically, we examine consumers' decisions to discard leftovers during meal scenarios affected by varying economic and contextual...