Research is needed to guide contingency management implementation across populations and settingsThere is enough research showing that contingency management (CM) is an effective treatment for stimulant use disorder. We now need research to ensure that CM is implemented effectively and equitably across populations and settings.We strongly agree with the points made in all four thoughtful commentaries on our article [1], and we appreciate the authors 'shining a light' on important issues. Becker's [2] call for more research on strategies to implement contingency management (CM), particularly in resource-constrained settings, is essential. McKetin and Clay's [3] advocacy for including the perspectives of individuals who