In this article, Rory Ridley-Duff discusses the differences between ‘old co-operativism’ and ‘new co-operativism’ and the position of the FairShares Model as part of the latter. The provisions for solidarity between multiple stakeholders make the FairShares Model one of very few Anglo-American approaches to the development of solidarity co-operatives. Reproduced from Issue 7 of STIR Magazine in 2014.