The Surplus of the Athenian Phoros by Ron K. Unz
Greek, Roman, and Byzantine Studies, Spring 1985, Vol. 26, Number 1, pp. 21-42.
In their attempts to understand the tribute income of the First Athenian Empire, historians have found that an unimpeachable contemporary source is challenged by undeniable physical evidence: explicit statements of Thucydides are directly contradicted by the epigraphical record of the quotas paid to Athena on the tribute collected by Athens. This paper proposes a new theory aimed at resolving this long-standing dilemma.