The economy of ancient Rome, with its money, complex credit arrangements, and long-range shipping, was surprisingly modern. Yet Romans also exchanged goods and services within a robust system of gifts and favors, which sustained the supportive relationships necessary for survival in the absence of the extensive state and social institutions. In Gift and Gain: How Money Transformed Ancient Rome, Neil Coffee shows how a vibrant commercial culture progressively displaced systems of gift giving over the course of Rome's classical era. The change was propelled the Roman elite, through their engagement in shipping, moneylending, and other enterprises. Members of the same elite, however, remained habituated to traditional gift relationships, relying on them to exercise influence and build their social worlds. They resisted the transformation, through legislation, political movements, and philosophical argument. The result was a recurring clash across the contexts of Roman social and economic life.