Bond, Eric. Using tariff indices to evaluate preferential trading arrangements : an application to Chile / Eric Bond. - Washington, D.C. : The World Bank, 1997. - 1 v. (various pagings) : ill. ; 28 cm. - Policy research working paper ; 1751 . Includes bibliographical references (p. 26). Subjects--Topical Terms: Tariff preferences -- Econometric models. Commercial treaties -- Econometric models. Dewey Class. No.: MISR 380.13 BON