Research about the circular economy is dominated by engineers, architects, and social scientists in fields other than economics. The concepts they study can be useful in economic models of policies – to reduce virgin materials extraction, to encourage green design, and to make better use of...

"Public-private partnerships (PPPs) play an increasingly prominent role in addressing global development challenges. United Nations agencies and other organizations are relying on PPPs to improve global health, facilitate access to scientific information, and encourage the diffusion of climate...