The study of the economies of the ancient city-state of Rome and its empire during the Republican and Imperial periods remains highly speculative. There are no surviving records of business and government accounts, such as detailed reports of tax revenues, and few literary sources regarding economic activity. Instead, the study of this ancient economy is today mainly based on the surviving archeological and literary evidence that allow researchers to form conjectures based on comparisons with other more recent pre-industrial economies.
During the early centuries of the Roman Republic, it is conjectured that the economy was largely agrarian and centered on the trading of commodities such as grain and wine. Financial markets were established through such trade, and financial institutions, which extended credit for personal use and public infrastructure, were established primarily by interfamily wealth. In times of agricultural and cash shortfall, Roman officials and moneyers tended to respond by coining money, which happened during the prolonged crisis of the First Punic War and created economic distortion and difficulties.