This paper by Suerie Moon (Harvard Global Health Institute and Harvard School of Public Health) argues that transparency is critical for global health by offering three illustrations: closed-door negotiations over trade agreements, which can contain provisions that are harmful for public health; the secretive investor-state dispute settlement processes of the global investment regime, which can tie the hands of governments to regulate for health; and pharmaceutical R&D, where lack of transparency can lead to skewed information on drug safety and efficacy, and provide a justification for unaffordable pricing.