Abstract
Abstract. We test the effectiveness of a social comparison nudge (SCN) to enhance lockdown compliance during the COVID-19 pandemic using a French representative sample (N = 1,154). Respondents were randomly assigned to a favorable/unfavorable informational feedback (daily road traffic mobility patterns, in Normandy – a region of France) on peer lockdown compliance. Our dependent variable was the intention to comply with a possible future lockdown. We controlled for risk, time, and social preferences and tested the effectiveness of the nudge. We found no evidence of the effectiveness of the SCN among the whole French population, but the nudge was effective when its recipient and the reference population shared the same geographical location (Normandy). Exploratory results on this subsample (N = 52) suggest that this effectiveness could be driven by noncooperative individuals.
References
1980). A theory of social custom, of which unemployment may be one consequence. The Quarterly Journal of Economics, 94(4), 749–775.
(2011). Social norms and energy conservation. Journal of Public Economics, 95(9-10), 1082–1095. 10.1016/j.jpubeco.2011.03.003
(2014). The short-run and long-run effects of behavioral interventions: Experimental evidence from energy conservation. American Economic Review, 104(10), 3003–3037. 10.1257/aer.104.10.3003
(2020). Carrots, sticks, sermons, and nudges during the pandemic. “Sweden through the crisis”. Stockholm School of Economics. https://www.hhs.se/en/research/sweden-through-the-crisis/
(2020). Pandemics meet democracy. Experimental evidence from the COVID-19 crisis in Spain. Working Paper. https://osf.io/dkusw
(2008). Predicting health behaviors with an experimental measure of risk preference. Journal of Health Economics, 27(5), 1260–1274. 10.1016/j.jhealeco.2008.05.011
(2012). Estimating time preferences from convex budgets. American Economic Review, 102(7), 3333–3356. 10.1257/aer.102.7.3333
(1951). Effects of group pressure upon the modification and distortion of judgment. Groups, Leadership and Men, 58, 295–303.
(1956). Studies of independence and conformity: I. A minority of one against a unanimous majority. Psychological Monographs: General and Applied, 70(9), 1–70. 10.1037/h0093718
(2020). Trust and compliance to public health policies in times of COVID-19. Journal of Public Economics, 192, 104316. 10.1016/j.jpubeco.2020.104316
(2020). Using social and behavioural science to support COVID-19 pandemic response. Nature Human Behaviour, 4, 460–471. 10.1038/s41562-020-0884-z
(1994). A theory of conformity. Journal of Political Economy, 102(5), 841–877. 10.1086/261957
(2020). Conspiracy beliefs, rejection of vaccination, and support for hydroxychloroquine: A conceptual replication-extension in the COVID-19 pandemic context. Frontiers in Psychology, 11, Article 2471. 10.3389/fpsyg.2020.565128
(2015). Using behavioral insights to increase vaccination policy effectiveness. Policy Insights from the Behavioral and Brain Sciences, 2(1), 61–73. 10.1177/2372732215600716
(2019). Nudging with care: The risks and benefits of social information. Public choice. 10.1007/s11127-019-00684-6
(2022). Designing acceptable anti-COVID-19 policies by taking into account individuals’ preferences: Evidence from a discrete choice experiment. Working paper. Available on request.
(2021). Population preferences for inclusive COVID-19 policy responses. The Lancet Public Health, 6(1), e9. 10.1016/S2468-2667(20)30285-1
(2020). Fast and local: How did lockdown policies affect the spread and severity of the covid-19. Covid Economics, 23, 325–351. https://e4s.center/wp-content/uploads/2020/09/Fastandlocal_full_EN-1.pdf
(2020). Do measures of risk attitude in the laboratory predict behavior under risk in and outside of the laboratory? Journal of Risk and Uncertainty, 60(2), 99–123. 10.1007/s11166-020-09325-6
(2017). Applying lessons from behavioral economics to increase flu vaccination rates. Health promotion international, 32(6), 1067–1073. 10.1093/heapro/daw031
(2009). Group identity and social preferences. American Economic Review, 99(1), 431–457. 10.1257/aer.99.1.431
(2010). Social comparisons and contributions to online communities: A field experiment on movielens. American Economic Review, 100(4), 1358–1398.
(2017). Social comparisons, status and driving behavior. Journal of Public Economics, 155, 11–20. 10.1016/j.jpubeco.2017.08.005
(1991). A focus theory of normative conduct: A theoretical refinement and reevaluation of the role of norms in human behavior. In M. Zanna (Ed.), Advances in Experimental Social Psychology (Vol. 24, pp. 201–234). Academic Press. 10.1016/S0065-2601(08)60330-5
(2016). Knowledge, attitudes, beliefs and behaviors of general practitioners/family physicians toward their own vaccination: A systematic review. Human Vaccines & Immunotherapeutics, 12(5), 1282–1292. 10.1080/21645515.2015.1138024
(2013). Energy conservation “nudges” and environmentalist ideology: Evidence from a randomized residential electricity field experiment. Journal of the European Economic Association, 11(3), 680–702. 10.1111/jeea.12011
(2021). Nudgeability: Mapping conditions of susceptibility to nudge influence. Perspectives on Psychological Science, 1745691621995183. 10.1177/1745691621995183
(2020). India nudges to contain COVID-19 pandemic: A reactive public policy analysis using machine-learning based topic modelling. PLoS One, 15(9), e0238972. 10.1371/journal.pone.0238972
(2013). Information strategies and energy conservation behavior: A meta-analysis of experimental studies from 1975 to 2012. Energy Policy, 61, 729–739.
(2011). Individual risk attitudes: Measurement, determinants, and behavioral consequences. Journal of the European Economic Association, 9(3), 522–550. 10.1111/j.1542-4774.2011.01015.x
(2013). Group identity and leading-by-example. Journal of Economic Psychology, 39, 414–425. 10.1016/j.joep.2013.06.005
(2018). Global evidence on economic preferences*. The Quarterly Journal of Economics, 133(4), 1645–1692. 10.1093/qje/qjy013
(2020a). The ‘great lockdown’ and its determinants. Economics Letters, 197, 109628. 10.1016/j.econlet.2020.109628
(2020b) COVID-19: Lockdown and institutions (Vol. 755). Società Italiana di Economia Pubblica. https://ideas.repec.org/p/ipu/wpaper/89.html
(2017). Risk preference shares the psychometric structure of major psychological traits. Science Advances, 3(10), e10701381. 10.1126/sciadv.1701381
(2017). The importance of peers for compliance with norms of fair sharing. European Economic Review, 97, 72–86. 10.1016/j.euroecorev.2017.06.001
(2021). Partisanship, health behavior, and policy attitudes in the early stages of the COVID-19 pandemic. PLoS One, 16(4), e0249596. 10.1371/journal.pone.0249596
(2016). Temporal stability, cross-validity, and external validity of risk preferences measures: Experimental evidence from a UK representative sample. SSRN Working paper. https://ssrn.com/abstract=2822613
(2019). On the external validity of social preference games: A systematic lab-field study. Management Science, 65(3), 976–1002. 10.1287/mnsc.2017.2908
(1997). An experiment on risk taking and evaluation periods. The Quarterly Journal of Economics, 112(2), 631–645. 10.1162/003355397555217
(2006). The impact of group membership on cooperation and norm enforcement: Evidence using random assignment to real social groups. American Economic Review, 96(2), 212–216. 10.1257/000282806777211658
(2020). Public acceptance of Covid‐19 lockdown scenarios. International Journal of Psychology, 56(4), 551–565. 10.1002/ijop.12721
(2011). Self-regulation of priming effects on behavior. Psychological Science, 22(7), 901–907. 10.1177%2F095679761141158610.1177/0956797611411586
(2018). Risk preferences, time preferences, and smoking behavior. Southern Economic Journal, 85(2), 313–348. 10.1002/soej.12275
(2020). Nudge in the time of coronavirus: Compliance to behavioural messages during crisis. SSRN Working paper, https://ssrn.com/abstract=3644165
(2018). “Under Risk, Over Time, Regarding Other People: Language and Rationality within Three Dimensions”. In L. FioritoS. ScheallC. E. Suprinyak (Eds.), Research in the history of economic thought and methodology (Vol. 36C, pp. 119-155). Emerald Publishing Limited. 10.1108/S0743-41542018000036C007
(Kagel, J. H., & Roth, A. E. (Eds.). (2020). The handbook of experimental economics (Vol. 2). Princeton University Press.2020). The intelligent lockdown: Compliance with COVID-19 mitigation measures in the Netherlands. Amsterdam Law School Research Paper. No. 2020-20. https://ssrn.com/abstract=3598215
(2015). In search of lost nudges. Review of Philosophy and Psychology, 6(3), 397–408. 10.1007/s13164-015-0265-0
(2007). Leading by example in a public goods experiment with heterogeneity and incomplete information. Journal of Conflict Resolution, 51, 793–818. 10.1177/0022002707302796
(2007). What do laboratory experiments measuring social preferences reveal about the real world? Journal of Economic Perspectives, 21(2), 153–174. 10.1257/jep.21.2.153
(2007). Psychological distance. In A. W. KruglanskiE. T. Higgins (Eds.), Social psychology: Handbook of basic principles (Vol. 2, pp. 353–383). Guilford Press.
(2015). Cross-sectional survey: Risk-averse French general practitioners are more favorable toward influenza vaccination. Vaccine, 33(5), 610–614. 10.1016/j.vaccine.2014.12.038
(2018). Rethinking nudge: Not one but three concepts. Behavioural Public Policy, 2(1), 107–124. 10.1017/bpp.2016.16
(2021). Economic preferences and compliance in the social stress test of the COVID-19 crisis. Journal of Public Economics, 194, 104322. 10.1016/j.jpubeco.2020.104322
(2011). Measuring social value orientation. Judgment and Decision Making, 6(8), 771–781. 10.2139/ssrn.1804189
(2021). Non-compliance with COVID-19-related public health measures among young adults in Switzerland: Insights from a longitudinal cohort study. Social Science & Medicine, 268, 113370. 10.1016/j.socscimed.2020.113370
(2017). Social norms and their enforcement. In S. G. HarkinsK. D. WilliamsJ. M. Burger (Eds.), The Oxford handbook of social influence. Oxford University Press.
(2021). Political beliefs affect compliance with covid-19 social distancing orders. Journal of Economic Behavior & Organization, 185, 688–701. 10.1016/j.jebo.2021.03.019
(2021). Modeling compliance with COVID-19 prevention guidelines: The critical role of trust in science. Psychology, Health & Medicine, 26(1), 1–12. 10.1080/13548506.2020.1772988
(2016). Who are the voluntary leaders? Experimental evidence from a sequential contribution game. Theory and Decision, 81(4), 581–599. 10.1007/s11238-016-9550-3
(2022). Data and the statistical code for “Nudging for lockdown: Behavioral insights from an online experiment.” https://osf.io/a39nw/
(2022). Stated preferences outperform elicited preferences for predicting compliance with COVID-19 prophylactic measures. Working Paper, Available at SSRN 4031918. https://ssrn.com/abstract=4031918
(2021). The impact on nudge acceptability judgments of framing and consultation of the targeted population. Available at SSRN 4055385. https://www.ssrn.com/abstract=4055385
(2021). Default options and insurance demand. Journal of Economic Behavior & Organization, 183, 39–56. 10.1016/j.jebo.2020.12.017
(2022). Science knowledge and trust in medicine affect individuals' behavior in pandemic crises. European Journal of Psychology of Education, 37(1), 279–292. 10.1007/s10212-021-00529-1
(2021). Loss aversion fails to replicate in the coronavirus pandemic: Evidence from an online experiment. Economics Letters, 199, 109433.
(2020). The usual suspects: Do risk tolerance, altruism, and health predict the response to COVID-19? Review of Economics of the Household, 18(4), 1041–1052.
(2020). The UK covid-19 response: A behavioural irony? European Journal of Risk Regulation, 11(2), 350–357. 10.1017/err.2020.22
(2004). Reflective and impulsive determinants of social behavior. Personality and social psychology review, 8(3), 220–247. 10.1207/s15327957pspr0803_1
(2017). On the trail of social comparison. In S. G. HarkinsK. D. WilliamsJ. M. Burger (Eds.), The Oxford handbook of social influence (Chapter 5). Oxford University Press.
(1979). An integrative theory of intergroup conflict. In S. WorchelW. Austin (Eds.), The social psychology of intergroup relations (pp. 33–48). Brooks/Cole.
(2019). How green defaults promote environmentally friendly decisions: Attitude‐conditional default acceptance but attitude‐unconditional effects on actual choices. Journal of Applied Social Psychology, 49(11), 721–732. 10.1111/jasp.12629
(2008). Nudge: Improving decisions about health, wealth, and happiness. Yale University Press.
(2015). The impact of choice architecture on sustainable consumer behavior: The role of guilt. Journal of Business Ethics, 131(2), 423–437. 10.1007/s10551-014-2287-4
(2014). The mediated influences of perceived norms on pro-environmental behavior. Revue d'économie politique, 124(2), 179–193. 10.3917/redp.242.0179
(2020). If-then plans help regulate automatic peer influence on impulse buying. European Journal of Marketing, 54(9), 2079–2105. 10.1108/EJM-05-2018-0341
(2015). Common components of risk and uncertainty attitudes across contexts and domains: Evidence from 30 countries. Journal of the European Economic Association, 13(3), 421–452. 10.1111/jeea.12102
(2022). How age affects risk and time preferences: Evidence from a representative sample. Working paper, SSRN 4031930. https://papers.ssrn.com/abstract=4031930
(2022). Did mindful people do better during the COVID-19 pandemic? Mindfulness is associated with well-being and compliance with prophylactic measures. International Journal of Environmental Research and Public Health, 19(9), 5051.
(2006). Analysis of microdata. Springer Science & Business Media.
(2020). Poverty and economic dislocation reduce compliance with COVID-19 shelter-in-place protocols. Journal of Economic Behavior & Organization, 180, 544–554. 10.1016/j.jebo.2020.10.008
(2020). Who complies with the restrictions to reduce the spread of COVID-19?: Personality and perceptions of the COVID-19 situation. Personality and Individual Differences, 166, 110199. 10.1016/j.paid.2020.110199
(2022). The role of personality in COVID-19-related perceptions, evaluations, and behaviors: Findings across five samples, nine traits, and 17 criteria. Social Psychological and Personality Science, 13(1), 299–310. 10.1177/19485506211001680
(