Avoiding Cognitive Inconsistency: Experimental Evidence on Sustainable Online Shopping
Cognitive inconsistency, the discrepancy between individuals’ behavior and their self-image, can cause the psychological discomfort called cognitive dissonance. Drawing on the results of a large-scale online survey experiment conducted in Germany in 2021, this paper investigates whether cognitive dissonance is reduced through self-deception and behavior change. After their attitudes toward sustainable production were elicited, participants could opt for a voucher from either a conventional or a sustainable online marketplace in an incentivized discrete-choice task. The task was combined with an experimental setting in which the salience of cognitive inconsistency was increased by either randomly reminding participants of their previously stated attitudes toward sustainable production or by providing information about the negative aspects of conventional online shopping. While we do not find evidence for self-deception, respondents adapt their behavior to their attitudes when their cognitive inconsistency is more salient.
Eßer, J., D. Flörchinger, M. Frondel and S. Sommer (2025), Avoiding Cognitive Inconsistency: Experimental Evidence on Sustainable Online Shopping. Journal of Behavioral and Experimental Economics, 119, 102387