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Purpose – This chapter examines how preferential liberalization between a pair of countries affects the terms of trade and welfare of the liberalizing countries and on the rest of the world (ROW). We adopt a model with symmetric countries that generalizes previous work by relaxing assumptions on functional forms, which allows for the possibility that exports of member countries are complements for exports of the ROW.

Methodology/approach – This chapter uses general equilibrium welfare analysis for a three-country trade model.

Findings – We show that Kemp–Wan tariff adjustments require a decrease (increase) in the external tariff of members in a preferential trade agreement to accompany internal liberalization in the neighborhood of internal free trade when member goods are substitutes (complements) for non-member goods. However, the adjustment path of the external tariff to reductions in the internal tariff could be non-monotonic when preferences are not of the CES type.

Practical implications – Our results are of interest for the design of rules for multilateral trade agreements with respect to preferential liberalization, since they indicate how tariffs must be adjusted to eliminate negative impacts on non-member countries.

Regional trading arrangements are proliferating at a rapid pace in the Asia-Pacific region, although the architecture that will eventually emerge remains uncertain. In this chapter we explore the economic implications for both China and its trading partners of the current crop of preferential arrangements and potential future developments in the Asia-Pacific region, using computable general equilibrium simulations. By doing so the chapter aims to identify factors that are likely to weigh heavily in the economic interests of the different participants in some of the alternative ways in which the trade architecture of the region might develop, and the extent of convergence or divergence in these interests.

This chapter reviews the evolution of thinking about regional trade agreements (RTAs) and the policy developments reflected in three waves of RTAs during the last half century. Desirable and undesirable features of RTAs can be identified, but the central message concerns the ambiguity of outcomes. The chapter concludes with a discussion of the role of the nation state and of multilateral institutions and the scope for intermediate levels of organization created by RTAs.

This chapter provides a formal analysis of the economic welfare effects for large and small partners to free trade agreements. Michaely (1998) has demonstrated that large country welfare is U-shaped in the small country's size. I derive the welfare for the large country for all possible small country sizes, and show that the maximum possible loss for the large country is twice its tariff revenue. I identify the data necessary to estimate the welfare effects and consider how initial trade volumes, tariffs, and international price differences affect the large country's welfare.

This edited volume has its genesis in a conference entitled New Paradigms in Economics of Welfare and Trade under Globalisation and Regionalisation. Held at the Coogee campus of the Australian School of Taxation (Atax), University of New South Wales (Sydney, Australia) from 8th to 10th August 2006, this conference brought together economic theorists from around the globe to celebrate Murray Kemp's 80th birthday. Conference participants and presenters included a former teacher, colleagues, co-authors, senior academics and many former students of Murray. After a two-year gestation period, the volume has finally been published. Half of the chapters in this book are derived from papers presented at the conference. The remaining half of the book consists of invited papers completed after the conference. All chapters in this volume were subjected to a formal reviewing and revision process.

Computable general equilibrium, or CGE, is a well-established numerical simulation technique for evaluating the economy-wide effects of changes in an economic system. It has become very widely used throughout the economics discipline, but is perhaps employed most frequently in the analysis of changes in international trade policy, where changes in tariffs and other taxes are often large and almost always involve multiple sectors and/or regions simultaneously. CGE methods, while certainly not without their limitations, have proved very effective at tracking the myriad of feedback and flow-through effects associated with new regional trading agreements and multilateral trade reforms, and have provided a consistent mechanism of analyzing the effects of changes in trade policy and related areas on a diverse range of economic outcomes.