‘Nudges’ may be effective at times, but policymakers can’t rely on them to tackle entrenched social problems.

Since the publication of 2008’s Nudge by Richard Thaler and Cass Sunstein, policy ‘nudges’ have been in fashion, with smaller interventions aimed at altering public behaviour in a subtle manner being adopted by many governments, including in the UK. Frank Mols looked at this phenomenon in a recent journal article, and argues here that while nudges undoubtedly can be effective, their limitations must be kept in mind