What happens when a behavioural nudge is removed? How can the momentum be maintained? Is it a “one and done” situation or will behaviour revert? Eugen Dimant, and Shaul Shalvi argue for “meta-nudging” – tapping into influencers in existing social contexts to delegate the policing of new norms. In situations where dishonesty can be individually beneficial but collectively harmful then nudging influencers could play an important part in successful change. The meta-nudge could be a useful complement to “classic” nudge … More Meta-Nudging: Putting collective momentum into behaviour change