RT Article T1 “Honor Among (the Beneficiaries of) Thieves” JF Ethical theory and moral practice VO 18 IS 2 SP 385 OP 402 A1 Meketa, Irina LA English YR 2015 UL https://ixtheo.de/Record/1565677560 AB Traditional accounts of the fair play principle suggest that, under appropriate conditions, those who benefit from the cooperative labor of others acquire an obligation of repayment. However, these accounts have had little to say about the nature of such obligations within morally or legally problematic cooperative schemes, taking the matter to be either straightforward or unimportant. It is neither. The question of what sorts of fair play obligations obtain for those who benefit from illicit cooperative activity is a matter of great complexity and consequence with implications for, inter alia, global economic justice. In this essay, I explore the nature of this obligation within illicit cooperative schemes, specifically those with so-called negative externalities, or deleterious effects on non-members of the scheme. I conclude that the willing beneficiaries of such schemes acquire a fair-play obligation to recognize and respond to their culpability. This reconceptualization of the fair play principle opens up new avenues for exploring the obligations of those who benefit from acts of collective wrongdoing. K1 Cooperative scheme K1 Externalities K1 Fair play K1 Free-riding K1 Obligation DO 10.1007/s10677-014-9524-x