Karacaovali, Baybars Limao, Nuno Clash of liberalizations preferential versus multilateral trade liberalization in the European union - Washington World Bank 2005 - 54 - Policy research working paper NO 3493 . Subjects--Topical Terms: Customs UnionsExport PricesMFN tariff concessionsMultilateral LiberalisationMultilateral TradeMultilateral trade negotiationsPreferential trade agreementReciprocity