Marc Domingo Gygax is Professor of Classics at Princeton University. He is the author of Untersuchungen zu den lykischen Gemeinwesen in klassischer und hellenistischer Zeit (2001) and Benefaction and Rewards in the Ancient Greek City: The Origins of Euergetism (Cambridge, 2016), which was joint winner of the 2017 Runciman Book Award. Arjan Zuiderhoek is an Associate Professor of Ancient History at Universiteit Gent. He is the author of The Politics of Munificence in the Roman Empire: Citizens, Elites and Benefactors in Asia Minor (Cambridge, 2009) and The Ancient City (Cambridge, 2017) and co-editor of Ownership and Exploitation of Land and Natural Resources in the Roman World (2015; with Paul Erdkamp and Koenraad Verboven), Imperial Identities in the Roman World (2016; with Wouter Vanacker) and Capital, Investment, and Innovation in the Roman World (2020; with Paul Erdkamp and Koenraad Verboven).