TY - BOOK AU - Saggi, Kamal TI - On the relationship between preferential and multilateral trade liberalization : the case of customs unions PY - 2013/// N2 - Compares equilibrium outcomes of two types of trade liberalization. Looks at bilateralism where countries choose whether to liberalise trade preferentially via a customs union (CU) multilaterally, or not at all; multilateralism in which countries cann form CUs and can only undertake non-discriminatory trade liberalisation. Isolates circumstances where the option to form CUs helps further the cause of multilateral liberalisation as well as where it does not ER -