Communicating car costs: Results from stated and revealed preference experiments
结合在线选择实验和展厅随机对照试验，研究提供能源成本与二氧化碳信息对消费者购车选择的影响，发现线上信息有效但线下无效。
While many studies find that consumers consistently undervalue fuel costs when making a new car purchase, whether this information failure can be corrected through an intervention remains unclear. This paper combines the results of two nationwide experiments conducted in the Republic of Ireland − an online discrete choice experiment and a showroom randomized controlled trial which test the provision of energy cost and CO 2 information on car choices. Findings from the online experiment suggest that providing monetary energy cost information, particularly when it is framed over longer time horizons increases the probabilty of selecting a battery electric vehicle (BEV). Field trial findings however do not show an effect of information provision at the point of vehicle sale. This highlights the difficutly in influencing real-world purchases, and the importance of source and timing in information provision.