Much of the revenue for the Hellenistic kingdoms was derived from agricultural products, rents paid by the tenants of royal land, and taxation of land. Trying to improve productivity, the rulers sponsored agricultural experiments and attempted to use their power to dictate agricultural practices and priorities. Such centralized planning was difficult to enforce at the local level, however, especially because the officials appointed to do so switched positions frequently and concentrated most on extracting taxes. Thus, despite royal interest in agriculture and a more studied approach to it in the Hellenistic period, there is no evidence that agricultural productivity increased or that practices changed. Technology was applied to military needs but not to those of food production.
As with agriculture, the production of goods also did not advance from technological developments. Although demand for goods increased during the Hellenistic period, no new techniques of production appear to have developed. Manual labor, not machinery, continued to turn out the raw materials and manufactured goods the Hellenistic world used. Apart from gold and silver, which were used primarily for coins and jewelry, bronze continued to be used for shields. Iron was utilized for weapons and tools.
Pottery remained an important commodity, and most of it was produced locally. The coarse pottery used in the kitchen for plates and cups changed little. Fancier pots and bowls were often decorated with patterns and scenes from mythology, legend, and daily life. Potters often portrayed heroic episodes, such as battles from the Iliad, or gods, such as Dionysus at sea. Pots journeyed with Greek merchants, armies, and travelers, so these images spread knowledge of Greek religion and stories west as far as Portugal and east as far as Southeast Asia. Pottery thus served as a means of cultural exchange — of ideas as well as goods — among people scattered across huge portions of the globe.