Journal
JOURNAL OF ECONOMIC BEHAVIOR & ORGANIZATION
Volume 190, Issue -, Pages 1-14Publisher
ELSEVIER
DOI: 10.1016/j.jebo.2021.07.012
Keywords
Transport; Nudging; Field experiment; Habit formation; Social norms
Categories
Funding
- Swedish Environmental Protection Agency
- Center for Economic Behavior and Inequality (CEBI) at the University of Copenhagen - Danish National Research Foundation [DNRF134]
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The study found that descriptive social norms have little impact on public transport usage, but increasing economic incentives can significantly boost ridership and long-term usage. The effect is mainly driven by initial low users, indicating habit formation and highlighting the heterogeneous effects of the policy.
In a large-scale natural experiment with over 14,0 0 0 individuals, we investigate whether public transport usage can be influenced by social norms and by economic incentives. Despite their effectiveness in other domains, we find a tightly estimated zero for descriptive social norms on ridership. Increasing the economic incentive, by doubling the trial period, significantly increases uptake and long-term usage. This increase is sustained for months after removing the incentive. The effect is mainly driven by initial low users, which is evidence for habit formation and highlights the heterogeneous effects of the policy. While there is scope for long-term behavior change, norm nudges might not be the most promising approach. (c) 2021 Elsevier B.V. All rights reserved.
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