Most drivers have experienced the same moment: two petrol stations sit only a few hundred metres apart, yet one sells fuel noticeably cheaper than the other. At first glance this feels irrational. Fuel comes from the same refineries, flows through the same pipelines, and often arrives on the same delivery trucks. So why would prices vary so much from one forecourt to another? The answer lies in the fact that a petrol station is not simply selling fuel. It is operating inside