Krebs, Tom Trade policy, income risk, and welfare / Tom Krebs, Pravin Krishna & William Maloney - Washington, D.C. : The World Bank (WB) , 2005 - 41p. : ill. ; 25 cm. - Policy research working paper No. 3622 . Subjects--Topical Terms: Welfare economicsTrade policyWorkersIncome Gov. Doc. Class. No.: UN WB PRWP-3622