Improving external validity of stated choice experiments

这个项目旨在通过减少由于调查和设计人工制品中选择任务的复杂性而造成的偏差，来提供对选择行为的更准确的估计。提取“真实的”偏好是具有挑战性的，这不仅是因为可能的假设偏差，也是因为日益复杂的选择任务和设计人工制品的存在。这个项目将在营销、运输、健康和环境经济学的背景下调查后两者，并提出新的方法来提取偏好，以更接近地反映真实市场的真实行为。

This project aims to deliver more accurate estimates of choice behaviour by reducing biases due to choice task complexity in surveys as well as design artefacts. Extracting 'true' preferences is challenging, not only due to possible hypothetical bias, but also due to increasingly complex choice tasks and the existence of design artefacts. This project will investigate the latter two in the context of marketing, transport, health, and environmental economics, and proposes new methodologies to extract preferences that more closely reflect true behaviour in real markets.