why do countries trade worksheet
News Analysis Theory Comment. Countries trade with each other when, on their own, they do not have the resources, or capacity to satisfy their own needs and wants.By developing and exploiting their domestic scarce resources, countries can produce a surplus, and trade this for the resources they need.pecialisation is the second fundamental principle associated with trade, and results from the division of labour. Given that each worker, or each producer, is given a specialist role, they are likely to become efficient contributors to the overall process of production, and to the finished product.