Circular Economy: Material Flows and Sustainable Materials – Practical Applications

5.4

Nudging and Consumer Incentives

In this step we’ll take a closer look at how consumer behavior can be supported and nudged in a more sustainable direction, providing better conditions for more circular products and services.

What is a ‘Nudge’?

Popularized by behavioral economics, a nudge is a subtle intervention in the ‘choice architecture’ that steers people toward a desired behavior without forbidding any options or significantly changing economic incentives.

In a circular context, this means making the sustainable choice the default or the easiest path.

• Default Options: Automatically setting printers to double-sided or enrolling residents in organic waste programs (with an opt-out choice).
• Social Norms: Providing feedback like “90 percent of your neighbors recycle their plastics” to leverage the human desire to follow community standards.
• Physical Cues: Using smaller plates in cafeterias to reduce food waste or placing repair stations in highly visible transit hubs.

In the following video, researchers explain how nudges subtly rearrange environments to encourage sustainable choices by tapping into automatic, non-conscious decision-making processes.

Consumer Incentives: Financial and Beyond

While nudges focus on psychology, incentives often address the economic or functional barriers to circularity.

• Financial Incentives: Deposit-refund systems (for example with bottles or electronics) and pay-as-you-throw waste fees provide a direct monetary reason to participate in circular loops.
• Convenience Incentives: Designing ‘Product-as-a-Service’ models (like leasing tools or appliances) where maintenance and returns are handled by the company, removing the burden of ownership and repair from the consumer.
• Informational Incentives: Using Eco-labels or repairability scores (like those used in France) to give consumers immediate, easy-to-digest data at the point of purchase.

As we learned in the previous step, these tools must be used carefully. If incentives are only accessible to the wealthy, or if nudges become manipulative, they risk burdening the vulnerable or failing to address the root causes of overconsumption.

Further reading, learning and references

Hummel, D. and Maedche, A. (2019). How effective is nudging? A quantitative review on the effect sizes and limits of empirical nudging studies. Journal of Behavioral and Experimental Economics, [online] 80(1), pp.47–58 https://doi.org/10.1016/j.socec.2019.03.005

Thaler, R. H., and Sunstein, C. R. (2008). Nudge: Improving Decisions About Health, Wealth, and Happiness. New Haven, Connecticut: Yale University Press https://yalebooks.yale.edu/book/9780300262285/nudge/

© Daniel Mossberg, CEMUS, Uppsala University and Sonali Phadke, studio Alternatives and Stephanie Foote