Abstract
We develop a simple two-country model to trace out conditions under which countries join the international fight against doping. We show that the support for an internationally coordinated anti-doping policy depends on the extent to which the rules of the anti-doping fight, as formulated by the World Anti-Doping Agency (WADA), account for national preferences and on the cross-country substitutability of sporting performance.
Acknowledgement
Funding from the Bundesinstitut für Sportwissenschaft is gratefully acknowledged.