This chapter discusses how international exploitation and unequal exchange emerge in the global economy by focussing on simple economic models with and without credit markets. Free trade of commodities among rich and poor countries results in a transfer of labour time between countries, allowing the citizens of some countries to consume more of the world’s social labour than they have contributed. Capital movements across borders together with strong restrictions on the movement of people result in net exporters of capital exploiting (or benefitting from unequal exchange at the expense of) net capital importers. Under perfect competition, mutual benefits from free trade in goods and capital can coexist alongside unequal flows of revenue and labour in the world economy. Market imperfections and the open use of coercion are not necessary for international exploitation to emerge. However, they may be central for it to persist over time.