Economist.com | Trucking in Cameroon: "The absence of roads...hurts the poor. The simplest way to measure the harm caused by bad infrastructure is to look at how prices change as you move away from big cities. A bottle of Coca-Cola, for example, costs 300CFA in Yaound�, where it is bottled. A mere 125km down the road, in the small town of Ayos, it is 315CFA, and at a smaller village 100km further on, it is 350CFA. Once you leave the main road, prices rise sharply. A Guinness that costs 350CFA in Douala will set you back 450CFA in an eastern village that can be reached only on foot. "