Publication: Preferential Trade Agreements and Their Role in World Trade
Abstract
This paper investigates the effects of preferential trade agreements (PTAs) on bilateral trade using a comprehensive data base of PTAs in force and a detailed matrix of world trade. Total trade between PTA partners is a poor proxy for preferential trade (trade in tariff lines where preferences are likely to matter): while the former was one-third of global trade in 2000-2002, the latter was between one-sixth and one-tenth. Gravity model estimates indicate that using total trade to assess the impacts of PTAs leads to a significant downward bias in the PTA coefficient: the semi-elasticity of trade with respect to PTA membership rises from 87% for total trade to 119% for preferential trade. Product exclusions and long phase-in periods significantly limit preferential trade; the marginal impact of South-South agreements on preferential trade is much higher than North-South PTAs, while the effect of North-North agreements is insignificantly different from zero.
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Publication Preferential Trade Agreements and Their Role in World Trade(World Bank, Washington, DC, 2006-10)The author investigates the effects of preferential trade agreements (PTAs) on bilateral trade flows using a comprehensive database of PTAs in force and a detailed matrix of world trade. He shows that total trade between PTA partners is a poor proxy for preferential trade (trade in tariff lines where preferences are likely to matter): while the former amounted to one-third of global trade in 2000-02, the latter was between one-sixth and one-tenth of world trade. His gravity model estimates indicate that using total rather than preferential trade to assess the impact of PTAs leads to a significant downward bias in the PTA coefficient. The author finds that product exclusions and long phase-in periods significantly limit preferential trade, and their removal could more than double trade in tariff lines above 3 percent of most-favored-nation (MFN) duties. He also shows that the effects of PTAs on trade vary by type of agreement and are increasing in the incomes of PTA partners.Publication East Asian Preferential Trade Agreements in Services : Liberalization Content and WTO Rules(2008)The past seven years have seen a rapid proliferation of preferential trade agreements (PTAs) in the East Asian region. Many of the recently concluded PTAs are comprehensive in their coverage, seeking not only the dismantling of barriers to trade in goods but also the liberalization of trade in services. This paper offers an assessment of this recent wave of services agreements in East Asia, focusing on their liberalization content and their compliance with WTO rules on regional integration. It draws on a database in which the authors recorded the value added of PTA liberalization undertakings relative to pre-existing multilateral services commitments. Among other things, this database is used to empirically assess the effect of the scheduling approach on the depth and breadth of liberalization undertakings.Publication Beyond Trade : The Impact of Preferential Trade Agreements on Foreign Direct Investment Inflows(World Bank, Washington, DC, 2006-11)The author investigates the effects of preferential trade agreements (PTAs) on the net foreign direct investment (FDI) inflows of member countries using a comprehensive database of PTAs in a panel setting. He finds that PTA membership is associated with a positive change in net FDI inflows, and the FDI gains are increasing in the market size of the PTA partners and their proximity to the host country. The author identifies several different channels through which preferential trade liberalization may affect FDI, and confirms that both threshold effects (signing the agreement) and market size effects (joining a larger and faster-growing common market) are important determinants of net FDI inflows, although the latter seem to dominate. The estimated relationship is largely driven by North-South PTAs, and is most pronounced in the late 1990s and early 2000s, the period when the majority of "deep integration" PTAs had been advanced.Publication Do Regional Trade Pacts Benefit the Poor? An Illustration from Dominican Republic--Central American Free Trade Agreement in Nicaragua(2009)This paper provides an ex-ante assessment of the poverty and income distribution impacts of the Central American Free Trade Area agreement on Nicaragua. A general equilibrium macro model is used to simulate trade reform scenarios and estimate their price effects, while a micro module maps these price changes into real income changes at the individual household level. The final impact on poverty is not too large, but its dispersion across households is significant and should be considered when designing compensatory policies. A main policy message is that Nicaragua should consider enlarging its own liberalization to countries other than the United States to boost trade-induced poverty reductions.Publication Evaluating the Trade Effect of Developing Regional Trade Agreements : A Semi-parametric Approach(2009)Many recent papers have pointed to ambiguous trade effects of developing regional trade agreements, calling for a reassessment of their economic merits. This paper focuses on 22 RTAs involving mostly developing countries and covering all the continents and use trade flows over the period 1962-2006. It proposes a two-step estimation approach to assess their trade impact: first estimate a gravity equation excluding the RTA variables, and then use the trade residuals estimated to run a kernel regression for each of the RTAs. This approach allows capturing the non-monotonic trade effects of the RTAs over time while imposing minimal structure on the model, and is flexible enough to be extended to any new RTA. As existing RTAs are deepened and new ones are being negotiated, ensuring that trade creation dominates trade diversion will be essential, particularly in the post-crisis world where resources will be limited for all countries.
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