The Economist has formed a panel of nine "leading economic thinkers" whose task is to prioritize the major problems facing the world. Among other eminent scholars, the panel includes Nobel prize winners Robert Fogel, James Heckman, Douglass North, and Vernon Smith. One could conceivably rank disease vs. malnutrition vs. armed conflict based on the cost of lost lives and livelihoods, but surely these fellows will go beyond that.
They report back in May. Should be interesting, and might sell a few magazines.