There is lots of talk about the WB taking a larger role in "global public goods" but little concrete examples of what those might be. Migration is a huge unfilled space in the international system--trade has the WTO, money and finance has the IMF, health has the WHO (and others). But there is no organization out there that has the view of "migration and development" and create ways to both promote more migration because of its positive impacts and protect those who move. This is because most international organizations are exactly that--"national"--their members and controlling bodies are nation-states. This makes migration issues difficult because the inter-national migrant by definition moves across two nation-states and hence their interests is fully represented by neither. But the gains from movement are so huge that creativity is capturing some of the gains can create massive possibilities for "win-win-win"