Synopsis
Initially manufacturers held a lot of power over supermarkets. This changed when supermarkets started centralising their operations.
Similar broadcast resources

Rule 1: Have an investment worthy product | Dragons' Den
Joe Lycett gives a humourous rundown on how to perfect your presentation with some mixed examples from the show.

Cars | What Britain Buys and Sells in a Day
Ed Balls, Ade Adepitan and Cherry Healey explore how much we really know about the logistics that enable Britain to buy and sell millions of cars around the world on an unprecedented scale.