A key goal of renewable resource managers in developing countries is to take actions to ensure that the resource being managed stays away from irreversible or crisis states, in which it provides neither consumptive nor non-consumptive services to humans. However, despite a manager's best...

We model international trade in renewable resources between a single buyer and competitive sellers as a Stackelberg differential game. The buyer uses unit and <i>ad valorem</i> tariffs to indirectly encourage conservation of the renewable resource under study. First, we show that the efficacy of these...