Abstract
This paper investigates the spillover effect of an environmental campaign on the support for policies within and across other domains. The environmental campaign focused on single-use plastics, and we find increased support for stricter plastic policies. However, support for environmental policies in other domains, such as climate change, is unaffected or even decreasing, evidencing a negative spillover effect on the support for policies in domains not targeted by the campaign. Interestingly, this effect is not the result of behavioral changes, but is rather related to limited cognitive abilities: focusing on one issue might result in a downplay of other environmental issues and reduced willingness to support policy changes.
Keywords: environmental campaign, policy support, spillover effect
