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Cross-cultural comparison of nudging effects for environmental protection: A case-study of risk-averse attitudes toward disposable plastics.
Komatsu, Hidenori; Kubota, Hiromi; Tanaka, Nobuyuki; Griffin, Mariah; Link, Jennifer; Geher, Glenn; Fisher, Maryanne L.
  • Komatsu H; Grid Innovation Research Laboratory, Central Research Institute of Electric Power Industry, Yokosuka, Kanagawa, Japan.
  • Kubota H; Sustainable System Research Laboratory, Central Research Institute of Electric Power Industry, Abiko, Chiba, Japan.
  • Tanaka N; Sustainable System Research Laboratory, Central Research Institute of Electric Power Industry, Abiko, Chiba, Japan.
  • Griffin M; Department of Psychology, State University of New York at New Paltz, New Paltz, New York, United States of America.
  • Link J; Animal Behavior Graduate Group, University of California, Davis, Davis, California, United States of America.
  • Geher G; Department of Psychology, State University of New York at New Paltz, New Paltz, New York, United States of America.
  • Fisher ML; Faculty of Science, Department of Psychology, Saint Mary's University, Halifax, Nova Scotia, Canada.
PLoS One ; 17(11): e0277183, 2022.
Article in English | MEDLINE | ID: covidwho-2098775
ABSTRACT
Disposable plastics are drawing considerable attention as a source of environmental risk despite their benefits in daily life. Banning the use of disposable plastics could increase other types of risks, which may damage the public good in the long run. Considering the trade-off of the risks and benefits, one way to improve social welfare is to conduct proper recycling and to continue using plastics but limit them to essential use, avoiding an unnecessary ban. A potential barrier to such a policy might be risk-averse attitudes toward actions that are perceived to threaten future generations, which is a well-known phenomenon. We previously designed a framework for information provision using messages that remind individuals about familial support, which had significant effects in multiple countries on increasing positive attitudes toward air pollution caused by industrialization. We hypothesized that this information provision could also be effective for disposable plastic use. Thus, we conducted a randomized controlled trial via online surveys in Japan, Canada, and the US to identify the effects of our designed messages about recycling on increasing positive attitudes toward disposable plastics. The intervention effects were measured by the difference-in-difference method and panel analysis based on linear regression models using the respondents' attributes and personality traits. The effects were consistently correlated with a sense of familial support, with the effect sizes varying according to country (US > Japan > Canada). Attributes that positively contributed to the message being more effective were higher agreeableness, lower Machiavellianism, lower psychopathy, and being a woman. Although personal fear about COVID-19 moderated the message effects, concern about the threats to relatives and family boosted the effects. Although the effect sizes were influenced by external factors, the results suggested that our proposed framework for information provision has the potential to be applied to a wider variety of risk-related topics.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: Plastics / COVID-19 Type of study: Case report / Experimental Studies / Observational study / Prognostic study / Randomized controlled trials Limits: Female / Humans Language: English Journal: PLoS One Journal subject: Science / Medicine Year: 2022 Document Type: Article Affiliation country: Journal.pone.0277183

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Full text: Available Collection: International databases Database: MEDLINE Main subject: Plastics / COVID-19 Type of study: Case report / Experimental Studies / Observational study / Prognostic study / Randomized controlled trials Limits: Female / Humans Language: English Journal: PLoS One Journal subject: Science / Medicine Year: 2022 Document Type: Article Affiliation country: Journal.pone.0277183