This essay offers an insightful reflection on the market's origins in the West, highlighting its role from the Middle Ages to the Modern Age as a collective identity and autonomous value judge. Paolo Prodi argues that the mercantile system, often misunderstood, historically shaped the rule of law, democracy, and social freedoms. He explores how globalization and economic power now demand customized laws, leading to the market's profound transformation. A lucid book providing key insights into future trends.