Book excerpt: The Greek cities and the economy. Constants and constraints -- Economy and oikonomia -- The economic space of the cities -- Primary text -- The world of agriculture. Agricultural labor and products -- Foodstuffs and how they were used -- Cultivating the soil -- Self-sufficiency and markets -- Primary texts -- Craft industries and business ventures. Private crafts -- Public works -- Primary texts -- Trade. Trading conditions -- Different levels of trading -- The business world -- Public interventions -- Primary texts.