Lost in the supermarket?

Why the 'cheap food revolution' hasn't reached poor countries
Most people don't think twice as they pass spring apples from the southern hemisphere as they enter the supermarket, but they are participating in a cheap food revolution that has swept the industrialized world over the past couple of generations. The supermarket is the last step in a complicated global process that has changed every aspect of how we produce and consume food. In theory, the arrival of supermarkets in a country should bring with it the "cheap food" that we have enjoyed for so many years.