The article originates from our Policy Analysis Theme and seeks to improve the understanding and effectiveness of using Green Energy Defaults (GED) in climate and energy policy. A randomized controlled experiment was carried out and the UK was taken as a case study. Compared to previous research efforts, a new analytical framework encompassing econometrics and a comparison of stated and revealed preferences is undertaken. Results challenge most of the existing lab experimental evidence and questions external validity claims. However, significant differential effects are found when preferences are compared, suggesting that GED can still influence consumer decision-making in the desired policy direction. However, outcomes are likely to be context-specific so policy generalisations are not advisable.
Read the full article (open access) in the Journal of Consumer Policy.