Encouraging sustainable food choices on food-delivery apps: which interventions work, when, and do consumers want them?

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• Paul Lohmann (University of Cambridge)
• Wednesday 05 March 2025, 15:00-16:00
• Nick Mackintosh Room, Department of Psychology, Downing Site, Cambridge.

If you have a question about this talk, please contact Yara Kyrychenko.

Behavioural interventions can play a crucial role in promoting more sustainable food choices, but their effectiveness depends on both design and context. In this talk, I will present findings from two large-scale online experiments that test different types of behavioural interventions within the same food-delivery app setting. The first study examines the effectiveness of three distinct approaches—an information intervention, a price incentive, and a choice architecture nudge—in shaping meal choices. The second study investigates when and why these interventions work by exploring the role of decision-making speed in shaping their impact. The results suggest that differences in decision time across contexts may help explain the varying effect sizes observed in previous studies of these nudges. Finally, I will conclude by considering whether consumers actually want to be nudged, drawing on evidence from policy support and consumers’ willingness to pay for these interventions.

This talk is part of the Social Psychology Seminar Series (SPSS) series.

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