Reconciling the WTO Effects on Trade at the Extensive and Intensive Margins

Empirical studies examining the impact of World Trade Organization (WTO) membership have produced disparate results. These studies, however, have focused on total aggregate trade flows. In this paper, we utilize disaggregated product level data to examine the impact of WTO membership on the product level extensive and intensive margin of imports. Utilizing the Poisson Pseudo-Maximum Likelihood (PPML) estimation that allows for heteroskedasticity in trade data and accounting for several estimation issues, we do not find a positive impact on either margins between WTO member country-pairs. Once we examine asymmetries in trade flows across countries based on their level of development, we find that developing WTO members experience an increase in the extensive margin from industrial member countries. Additionally, the industrial WTO members also experience an increase in the extensive margin from developing WTO members. Results suggest that WTO facilitates the North–South trade relationship, which has been largely absent in trade literature.     

Which International Institutions Promote International Trade?

This paper estimates the effect on international trade of three multilateral organizations intended to increase trade: (1) the World Trade Organization (WTO) and its predecessor the General Agreement on Tariffs and Trade (GATT); (2) the International Monetary Fund (IMF); and (3) the Organisation for Economic Co‐operation and Development (OECD) and its predecessor the Organisation for European Economic Co‐operation (OEEC). I use a standard “gravity” model of bilateral merchandise trade and a large panel dataset covering over 50 years and 175 countries. My results indicate that OECD membership has had a consistently large positive effect on trade, while accession to the GATT/WTO also increases trade.     

Free Trade Agreements and the Prospects for Regional Integration in East Asia

Trade policy in East Asia has switched from non-discriminatory unilateral liberalization, reinforced by General Agreements on Tariffs and Trade/World Trade Organization (GATT/WTO) commitments, to discriminatory free trade agreements (FTA). The paper surveys the FTA activity of the major regional players: China, the ASEAN countries, Japan, and South Korea. It concludes that emerging FTAs are weak and partial. A hub-and-spoke pattern of dirty FTAs will not drive regional economic integration or further integration with the global economy. Rather, it could be a force of regional economic disintegration – especially if the multilateral trading system weakens further. At the same time, FTA activity is distracting attention from the WTO, and, more fundamentally, from unilateral liberalization and domestic structural reforms. Hence, East Asian trade policies need to be rebalanced, with better-quality FTAs and more focus on the WTO. However, more important than the WTO and FTAs is a fresh spurt of unilateral liberalization and structural reform outside trade negotiations.     

Tariff Liberalization and Trade Integration of Emerging Countries

This paper investigates how tariff liberalization has affected exporting at the product‐destination level in emerging countries. We use a highly disaggregated (six‐digit level of the harmonized system—HS—classification) bilateral measure of market access to compare tariffs applied in 1996 and 2006, which includes the timing of the Uruguay Round and episodes of bilateral liberalization. Our econometric estimations consider impacts of tariff cuts on three components of the trade margins: extensive margin of entry (new trade relationships at the product‐destination level), extensive margin of exit (disappearance of existing relationships) and intensive margin of trade (deepening existing relationships). Our main estimates indicate that a reduction of bilateral applied tariffs of 1 percentage point increases the extensive margin of entry by 0.1% and the intensive one by 2.09%, while it reduces the extensive margin of exit by 0.25%.     

Non-tariff measures: What's tariffs got to do with it?

After successive rounds of tariff reductions by GATT/WTO members, non-tariff measures (NTMs) have increasingly become the focal point of multilateral trade negotiations. It remains an open question whether the liberalization in tariff rates has subsequently been weakened or even erased by increases in NTMs. Using a product-level global panel of WTO members over the period 1996–2019, this paper systematically examines the empirical link between various tariff measures and the imposition of NTMs. I find that bound or applied tariff reductions do not correlate much on their own with NTM incidence. The relevant trade policy margin for detecting a tariff–NTM nexus is instead tariff overhangs, the difference between WTO members' bound and applied tariff rates. Countries impose more NTMs when their sectoral applied tariffs are close to their respective bound rates, indicating that small tariff overhangs signal limited legal trade policy flexibility.     

The GATT/WTO has promoted trade,but only in capital-intensive commodities!

This article uses gravity models to explore the impact of the General Agreement on Tariffs and Trade (GATT)/World Trade Organization (WHO) on bilateral trade in a sample of 46 countries over the period 1965 to 1997. Our data enable us to disaggregate trade by broad commodity aggregates. The results for total trade are similar to those reported by Rose (2004). However, the disaggregated estimates reveal that the GATT/WTO has had a positive and statistically significant impact on trade in capital-intensive commodities, but no statistically significant impact on trade in other commodities. The article demonstrates that simple modifications of Rose's approach lead to results that are much more ‘common sense’ than his (JEL F10, F15).     

Austerity and Exports

Recent papers have focused attention on the potential for expansionary austerity (i.e. that cutting budget deficits may increase growth in the short run). In this paper we investigate the impact of fiscal consolidation on trade using bilateral trade data. The use of bilateral trade data allows us to demonstrate three novel empirical results. First, while fiscal consolidation is associated with an increase in own‐country exports, it is also correlated to an equal extent with a decrease in foreign‐country exports (i.e. imports); indeed, simultaneous austerity has no statistically significant impact on bilateral trade. Second, the positive effect of austerity on exports disappears when trading partners share a common currency. Third, the increase in exports as a result of austerity is associated entirely with an increase in the range of goods exported (the extensive margin), at the expense of trade volume among existing trade relationships (the intensive margin).     

Do SPS measures matter for margins of trade? Evidence from firm-level data

According to the World Trade Organization (WTO) standards, countries are allowed to adapt regulations under the Sanitary and phyto-sanitary (SPS) and technical barriers to trade (TBT) agreements in order to protect human, animal and plant health, as well as environment and human safety. Yet, these measures can become an impediment in international trade, especially for developing countries. Therefore, using an Egyptian firm-level data set and a new database on specific trade concerns raised in the TBT and SPS committees at the WTO, we analyse the effects of product standards on two related aspects: first, the probability to export (firm-product extensive margin), and second, the value exported (firm-product intensive margin). We merge this data set with a new database on specific trade concerns raised in the TBT and SPS committees at the WTO. Our main findings show that SPS measures imposed on Egyptian exporters have a negative impact on the probability of exporting a new product to a new destination. By contrast, the intensive margin of exports is not significantly affected by such measures.     

Democracy and Accession to GATT/WTO

In this paper we argue that the level of democracy of an applicant country affects the time it takes to gain General Agreement on Tariffs and Trade/World Trade Organization (GATT/WTO) accession. An extensive empirical search suggests that the GATT/WTO accession duration is likely to be shorter for an applicant whose political regime is more democratic. Meanwhile, countries that initiated applications before 1995 took longer to accede to GATT than those that initiated applications after 1995 to accede to the WTO. The GATT/WTO accession is shortened if the applicant country's economy is large. Such findings are robust to the choice of different econometric methods, data sets and model specifications.     

Exports,investment and policy uncertainty

Building on a literature that underscores the value of delaying investment in the face of uncertainty, we study how policy uncertainty in 18 large economies affects exports to these economies. We decompose aggregate bilateral trade flows from 1995 to 2013 into intensive and extensive margin components and employ a gravity specification to assess the impact of policy uncertainty on each margin separately. Consistent with theory, increases in policy uncertainty decrease both trade values and the extensive margin but, if anything, increase the intensive margin. In further tests, we use various proxies for sunk export costs and demonstrate that the effects of policy uncertainty are more pronounced where sunk costs are higher.     

Trade policy under the GATT/WTO: empirical evidence of the equal treatment rule

Abstract. A fundamental difference between multilateral trade agreements like the GATT and WTO and a preferential agreement is the multilateral agreements’ inclusion of a most‐favoured‐nation principle. Though MFN requires that members implement policies that provide equal treatment to all GATT/WTO countries, how far do members actually follow the MFN principle when so required? We empirically investigate a sample of GATT/WTO trade disputes and the effect of successful dispute settlement negotiations on the disputed product trade of third country exporters to the defendant country. We document evidence of trade liberalization consistent with defendant countries successfully applying the equal treatment rule. JEL classification F13     

The Economics of Trade Disputes, the GATT's Article XXIII, and the WTO's Dispute Settlement Understanding

Economic theory has yet to provide a convincing argument that can explain why the threat of retaliation under the GATT/WTO dispute settlement procedures is not sufficient to prevent countries from violating the agreement. We consider the question of why countries violate the agreed–upon rules in the face of explicit provisions which allow them to legally adjust their trade policy. Using the GATT/WTO institutional structure and the guiding principle of reciprocity, we provide a theory suggesting when countries will choose to implement protection in violation of GATT/WTO rules, as opposed to under the relevant safeguards provisions, when trade policy adjustments are necessary between "negotiating rounds."     

Currency Unions,Export Margins,and Product Differentiation: An Empirical Assessment for European Monetary Union

This paper reconsiders the trade effects of the euro, providing a decomposition into its effects on the extensive margin and intensive margin. Furthermore, it relates the more disaggregated estimates for 93 two‐digit HS product groups to the elasticity of substitution, thereby testing a key hypothesis of heterogenous firm trade theory. The estimates for the period 1996–2011 suggest a trade effect of the euro of some 28%, which has mainly materialized through the intensive margin. A negative net effect of the euro on the extensive margin is found for several product groups, supporting anecdotal evidence that firms have consolidated their product varieties in response to the elimination of exchange rate variability. Finally, the disaggregated estimates are in line with heterogenous firm trade theory models, suggesting that a large elasticity of substitution dampens the effect of a trade cost reduction on the extensive margin and amplifies its effect on the intensive margin.     

贸易自由化是如何影响我国出口产品质量的？*--基于贸易政策不确定性下降的视角

传统理论认为贸易自由化会促进出口产品的质量升级,但我国加入W TO后的情况却并非如此。文章基于贸易政策不确定性的视角,利用我国加入W TO前后美国对我国产品进行关税调整这一自然实验,通过倍差法分析了贸易自由化对我国出口产品质量的影响。研究表明：（1）在贸易自由化的过程中,贸易政策不确定性的下降会拉低我国的出口产品质量,且这一结论在改变质量测度方法、控制成本效应以及使用不同的产品属性、贸易对象和样本的情况下依然稳健;（2）贸易政策不确定性主要是通过广延边际上的质量调整降低了我国出口产品的总体质量,即在贸易政策不确定性下降幅度越大的产品中,有越多的生产低质量产品的企业进入出口市场;（3）在集约边际上,存续企业并未针对贸易政策不确定性的下降做出及时的产品质量调整,从而无法改变我国的产品质量在短期内下降的趋势。文章为我国如何在推行贸易自由化的同时实现出口产品质量升级提供了启示。     

GATT,Preferential/Regional Trading Blocs and Agricultural Trade*

Agricultural trade impasses have again frustrated the GATT process. Interest in preferential/regional trading blocs is increasing. the paper probes the theoretical and empirical consequences of preferential arrangements instead of multilateral liberalization. It concludes that in a second-best world preferential arrangements could either improve or decrease global welfare. For agricultural trade, previous experience suggests that in regional groupings such as the EC trade diversion exceeded trade creation. This results from trade distorting domestic policies. Prospects for liberalization of agricultural trade under either GATT or preferential arrangements are limited. the consequences for small agricultural exporters are not positive.     

Revisiting the sectoral Linder hypothesis: Aggregation bias or fixed costs?

This paper reassesses and revisits the Sectoral Linder Hypothesis due to Hallak, which posits that similar tastes for quality lead to more intensive trade between similar countries at the sectoral level. First, the measure of demand similarity used in this paper is based on the distribution of income estimated from household surveys. The paper finds that a similarity measure based on the income distribution produces stronger results than the traditionally used measure based on GDP per capita. Moreover, the country/product level extensive margin is taken into account. This is important because similarity is likely to affect the fixed costs of trade and the fixed costs of alternative means of servicing a market (i.e., licensing and FDI). Fixed costs, in turn, affect the number and average productivity of firms that engage in bilateral trade and hence the overall volume of trade. This paper employs the method by Helpman et al. to control for the extensive margin. Heteroskedasticity is addressed using a feasible generalized least squares (FGLS) approach. The findings show that once controlling for the effect of similarity on the extensive margin, the Linder hypothesis holds at more aggregate levels. Other robustness checks suggest that results are not confined to products that are vertically differentiated.     

Cuba,Trade Dependency and the GATT/WTO System

Cuba sought economic independence from the U.S. and its reliance on sugar exports after its 1959 revolution, but subsequently developed new dependency relationships. In the meantime, Cuba remained inside the General Agreement on Tariffs and Trade (GATT), despite conducting most of its trade outside it. This paper explores the political economy of Cuba’s participation in the GATT and later the World Trade Organization (WTO). Documents show that Cuba sought to use its participation to gain new markets and influence in the developing world. While Cuba has gained little economically from its participation, in recent years it has diversified its exports and trade partners, and its trade interests now align more closely with WTO rules. Economic reforms will be necessary in order for Cuba to benefit.     

Short-Term and Long-Term Margins of International Trade: Evidence from the Canada-Chile Free Trade Agreement

We investigate the impact of the Canada-Chile Free Trade Agreement (CCFTA) on Canadian exports to Chile, particularly the dynamic effects of the agreement on extensive and intensive margins of trade. Consistent with the literature, we find that the extensive margin effects occurred later than the intensive margin effects and became more prominent in the long-term. Surprisingly, the intensive margin effects died off in the long-term. A theoretical model is constructed to show that our results can arise in a standard setting of intra-industry trade.     

中国加入WTO环境保护的对策研究

中国目前正积极准备加入世界贸易组织（WTO）,WTO的宗旨是实现世界贸易自由化,而贸易自由化与环境保护之间存在着密切的关系。本文总结了GATT／WTO的多边贸易协议中与环境保护有关的规定与条款,对加入WTO我国环境保护与国际贸易的协调发展提出了对策建议。     

The impact of trade promotion services on Canadian exporter performance

From 1999 to 2006, Canadian firms successfully diversified their exports to destinations beyond the United States while smaller firms increased their share in total exports. Both are explicit aims of the Trade Commissioner Service export promotion program. Exploiting assumptions from the treatment effects literature, we identify a causal, export‐boosting effect. In contrast with existing evidence for Latin American countries, the intensive margin effect—higher exports to existing product‐destination markets—dominates. Effects at the extensive margin—exporting more products to more destinations—are smaller and sensitive to identification assumptions. We interpret this evidence in light of trade models with heterogeneous firms.