Starbucks used to be the retailer who symbolically announced the revival of an urban community. Not any longer. Will Doig looks at Whole Foods, the new gentrification symbol, who've "made a science of putting down roots" at "just the right moment".
Tanveer Ali sees Detroit, where the impending arrival of retail behemoths has been greeted with enthusiasm by a city in desperate need of jobs and retail outlets, as an interesting test case for theories about the economic value of big-box stores
