these regions tend to be divided into those that are highly dependent on farming as a source of livelihood and those where farming is a minor activity the farmingdependent regions show a further dichotomy between poorly integrated regions where farming remains either a subsistence or semisubsistence activity and regions where farming is highly specialised in the production of a major export crop that has little or no food potential such as cotton or is limited in its food value such as coffee those that produce nonagricultural products rely on imported food and access to food can be limited by transport restrictions weak connectivity to external markets or by a decline in incomes if the resource price falls