我的智库 — — 哥本哈根共识（Copenhagen Consensus）请60组经济学家（其中包括多位诺贝尔经济学奖获得者）研究哪些目标的每一美元收益最大，以帮助此次会议作出最佳选择。
My think tank, the Copenhagen Consensus, has asked 60 teams of economists, including several Nobel laureates, to investigate which targets would do the most good for every dollar spent, to help this meeting make the best choices.