Uruk’s streets were lined with goods that its workshops and firms produced. Therefore we know that Uruk’s complex economy was based on

trade and commerce.

Uruk's complex economy was based on trade and the production of goods by its workshops and firms. The presence of goods lining the streets suggests a bustling marketplace where these goods were bought and sold. The workshops and firms in Uruk would have been engaged in various industries such as textiles, pottery, metalwork, agriculture, and other crafts. The production of these goods would have fueled the economy, attracting traders and merchants from neighboring regions and facilitating the growth of Uruk as a major trading hub in ancient Mesopotamia.