How Well Do Nudges Work?
The research literature on nudge effectiveness is growing. 2022 started with a new PNAS article reporting a meta analysis of 455 effect sizes from 214 publications. Here's a short summary.
Charge for Use or Nudge to Reuse? Interventions to Discourage Plastic Consumption
Gauri Chandra discusses the negative implications of charging for single-use plastic bags and suggests alternative behavioural interventions.