The European Union has decided to replace its current A+++ to D labelling scheme for cold appliances with a rescaled A to G labelling scheme. Employing a demographically representative discrete choice experiment on refrigerator adoption using an online survey among more than 1000 households in Germany, this paper explores the effects of the rescaled scheme compared to the old scheme on the stated uptake of top-rated refrigerators. Since in practice both schemes will be shown for a transitory period, the paper also analyses the effects of displaying both labels simultaneously. The findings from estimating a mixed logit model suggest that showing the rescaled A to G label alone significantly increases valuation of top-rated refrigerators compared to showing the current A+++ to D label alone. In comparison, when the A+++ to D and the rescaled A to G schemes are shown simultaneously, no benefits of introducing the rescaled label are found. Thus, policymakers should strive to enforce the application of the rescaled label scheme as quickly as possible and to shorten transitory periods where both labels are shown simultaneously.

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This paper suggests a characterization of increases in risk aversion within the smooth ambiguity model by Klibanoff, Marinacci, and Mukerji (2005). I show that an increase in risk aversion is qualitatively different from that under expected utility, due to the incomplete separation between risk and ambiguity attitude. The analysis clarifies how ambiguity perception and attitude depend on risk aversion. (JEL D81)

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