In most undergraduate economics courses, students are taught that the differences between the economies of poor and rich countries can be explained by the laws of comparative advantage and supply and demand. The standard theory holds that prices and wages are set automatically by the market depending on each country’s factors of production. Poor countries have a natural abundance of labour, so their wages are low and therefore their comparative advantage lies in labour-intensive production (first mining and agriculture and later also light manufacturing). Rich countries have a natural
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