As powerful nations turn inwards and multilateral institutions falter, alternative coalitions need to step into the breach to push for global progress. Such flexible and diverse groupings will be most effective if they are based around issues and deploy new tactics to seize every chance to shape international norms. Len Ishmael, Stephan Klingebiel and Andy Sumner explain the concept of ‘like-minded internationalism’.

I chaired the London launch of the OECD’s annual aid report last week (when it comes to flagships, the multilateral system is starting to look like the Spanish Armada – more on that tomorrow). We opted for a radical new model for such meetings: the chair keeps people to time, says where the toilets are (when he remembers) but otherwise