Carrot, stick, or both? Price incentives for sustainable food choice in competitive environments

📝 Original Info

• Title: Carrot, stick, or both? Price incentives for sustainable food choice in competitive environments
• ArXiv ID: 2512.13174
• Date: 2025-12-15
• Authors: Francesco Salvi, Giuseppe Russo, Adam Barla, Vincent Moreau, Robert West

📝 Abstract

Significance Statement. Pricing interventions are widely discussed as a lever for promoting sustainable food choices, yet most evidence comes from captive or highly constrained settings where consumers have limited alternatives. Our large-scale field experiment, conducted in a competitive real-world campus environment, reveals that pricing strategies can meaningfully reduce greenhouse gas emissions but may also trigger behavioral spillovers that undermine their environmental benefits. By directly comparing discounts, surcharges, and combined schemes, we show that balanced pricing can achieve climate impact without harming economic viability. These findings offer actionable insights for policymakers and institutions aiming to design effective and scalable sustainability interventions.

📄 Full Content

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