Eco-labelled food products: what are consumers paying for?
通过实验研究消费者对生态标签产品的溢价支付是出于自私还是利他动机，发现信息告知生态产品不一定带来更高私人收益并不影响支付意愿，表明溢价源于其他动机。
The paper investigates whether the premium consumers are willing to pay for an eco-labelled product is driven by selfish or altruistic motives. Using an incentive-compatible experiment with both a within- and a between-subject design, we study the effect on this premium of information stating that eco-friendly products do not necessarily lead to higher private benefits. We find that this information does not affect buying prices in the within-subject experiment. This suggests that consumers’ willingness to pay for the eco-labelled product does not derive from perceived higher taste or safety attributes but from other motives. These results are confirmed in the between-subject design where we find that information affects buying prices for the eco-friendly product but also for the control product in the between-subject experiment.