21. Working Paper: Poverty Traps and Climate and Weather Risk: Limitations and Opportunities of Index-based Risk Financing Barrett, Christopher B.; Barnett, Barry J.; Carter, Michael R.; Chantarat, Sommarat; Hansen, James W.; Mude, Andrew G.; Osgood, Daniel E.; Skees, Jerry R.; Turvey, Calum G.; Ward, M. Neil 2007 Reports Science--Social aspectsEcology