Scaling what works doesn’t work: we need to scale impact instead

Scaling has become a buzzword in international development, where the received wisdom is to ‘scale what works’. However, whilst this is a paradigm that suits private investment in international development and science more broadly, complex problems require nuanced solutions. Robert Mclean, John Gargani and Dena Lomofsky, argue that a new conception of scaling – scaling impact- can better serve the public good.