Eco-certification of coffee, timber and other high-value agricultural commodities is increasingly widespread. In principle, it can improve commodity producers' environmental performance, even in countries where state regulation is weak. But eco-certification will have limited environmental...

National government-funded payments for environmental services (PES) programs often lack sustainable financing and fail to target payments to providers of important environmental services. In principle, these problems can be mitigated by supplementing government financing with contributions from...

Although protected areas, or “parks”, are among the leading policy tools used to stem tropical deforestation, rigorous evaluations of their effectiveness—that is, evaluations that control for their tendency to be sited in remote areas with relatively little deforestation—have only...