TY - BOOK AU - Wainio, John AU - Dean, Judith M TI - Quantifying the value of U.S. tariff preferences for developing countries T2 - World Bank policy research working papers AV - IBRD(08)PRWP/3977 PY - 2006/// CY - Washington, D. C. PB - World Bank KW - ECONOMICS KW - DEVELOPMENT--RESEARCH KW - TRADE PREFERENCE EROSION--RESEARCH ER -