Tim Gore explains the evolving theory of change behind Oxfam’s new supermarkets campaign ‘First the brands, now the retailers.‘ That was the reaction of a senior staffer at Mars – one of the 10 biggest global food manufacturers targeted in our award-winning Behind the Brands campaign – to the Behind the Barcodes launch last month. Why did we choose supermarkets

Supermarkets are not just a northern phenomenon, but are spreading fast across the developing world. Some of them arrive from outside, like the giant Tescos outside my hotel on a recent visit to Korea; others are homegrown. Either way, they are having a big impact on the lives and prospects of farmers, large and small. Thomas Reardon at Michigan State