WTO Working Papers

In spite of their growing importance in international trade as well as in bilateral and multilateral trade negotiations, services have only attracted limited attention from researchers interested in determinants of trade policies and trade cooperation. This paper seeks to account for countries' varying levels of market access commitments under the multilateral General Agreement on Trade in Services (GATS). I develop an argument suggesting how levels of democracy and factor endowments are associated with more commitments. The empirical analysis supports these propositions, and also suggests that relative size, as well as regulatory capacity, are positively linked to GATS commitments.

The paper discusses a number of issues related to the treatment of trade credit internationally, a priori (treatment by banking regulators) and a posteriori (treatment by debtors and creditors in the case of default), which are currently of interest to the trade finance community, in particular the traditional providers of trade credit and guarantees, such as banks, export credit agencies, regional development banks, and multilateral agencies. The paper does not deal with the specific issue of regulation of official insured-export credit, under the OECD Arrangement, which is a specific matter left out of this analysis. Traditionally, trade finance has received preferred treatment on the part of national and international regulators, as well as by international financial agencies in the treatment of trade finance claims, on grounds that trade finance was one of the safest, most collateralized, and selfliquidating forms of trade finance. Preferred treatment of trade finance also reflects the systemic importance of trade, as in sovereign or private defaults a priority is to "treat" expeditiously trade lines of credits to allow for such credit to be restored and trade to flow again. It is not only a matter of urgency for essential imports to be financed, but also a pre-condition for economic recovery, as the resumption of trade is necessary for ailing countries to restore balance of payments equilibrium. The relatively favourable treatment received by trade finance was reflected in the moderate rate of capitalization for cross-border trade credit in the form of letters of credit and similar securitized instruments under the Basel I regulatory framework, put in place in the late 1980s and early 1990s. However, as the banking and regulatory communities moved towards internal-rating based and risk-weighted assets systems under the successor Basel II framework, a number of complaints emerged with respect to the treatment of trade credit – particularly in periods of crisis. Issues of pro-cyclicality, maturity structure and country risk have been discussed at some length in various fora, including in the WTO at the initiative of Members. Part of the issue was that Basel II regulation was designed and implemented in a manner that, in periods of banking retrenchment, seemed to have affected the supply of trade credit more than other potentially more risky forms of lending. With the collapse of trade in late 2008 and early 2009, the regulatory treatment of trade credit under Basel II clearly became an issue and was discussed by professional banking organizations, regulators and international financial institutions. A sentence made its headway into the communiqué of G-20 Leaders in London in April 2009, calling upon regulators to exercise some flexibility in the application of Basel II rules, in support of trade finance. As the issue of removing the obstacles to the supply of trade finance spread became part of the public debate, discussions with respect to the regulatory treatment of trade finance in the context of the making of "Basel III" rules are now raising political attention. Part of the underlying problem regarding the design of regulation of trade finance is that banking regulators may not have enough understanding of the way that trade and trade finance operate in practice. In turn, the banking community has made insufficient progress in explaining these issues to regulators and in providing evidence about the high level of safety and soundness of their activity, in collecting statistical information and even in defining clearly what comprises trade finance. This paper aims at clarifying such issues. The WTO, in its role as an "honest broker", is trying to help the parties concerned, and has been asked from time to time to act as a go-between between the two communities, in order to clarify issues. Section 1 looks at the overall Basel framework and its evolution over time, with particular emphasis on the regulation of trade finance. Section 2 looks at issues raised in the WTO context by the trading and trade finance communities, be it by WTO Members or by experts, and how this has helped to clarify some of the disputed issues. Section 3 raises a number of questions which need clarification from the trade finance community for regulators to be able to better capture the reality of trade finance operations, and allow them to regulate with full understanding of its implications.

We examine the effects of transit, documentation, and ports and customs delays on Africa’s exports. We find that transit delays have the most economically and statically significant effect on exports. A one day reduction in inland travel times leads to a 7 percent increase in exports. Put another way, a one day reduction in inland travel times translates into 1.5 percentage point decrease in all importing-country tariffs. In contrast, longer delays in the other areas have a far smaller impact on trade. We control for the possibility that greater trade leads to shorter delays in three ways. First, we examine the effect of trade times on exports of new products. Second, we evaluate the effect of delays in a transit country on the exports of landlocked countries. Third, we examine whether delays affect time-sensitive goods relatively more. We show that large transit delays are relatively more harmful because of high within-country variation.

It is becoming increasingly important to put freshwater issues in a global context. Local water depletion and pollution are often closely tied to the structure of the global economy. With increasing trade between nations and continents, water is more frequently used to produce exported goods. International trade in commodities implies long-distance transfers of water in virtual form, where virtual water is understood as the volume of water that has been used to produce a commodity and that is thus virtually embedded in it. Knowledge about the virtual-water flows entering and leaving a country can cast a completely new light on the actual water scarcity of a country. For example, Jordan imports about 5 to 7 billion m3 of virtual water per year, which is in sharp contrast with the 1 billion m3 of water withdrawn annually from domestic water sources. This means that people in Jordan apparently survive owing to the import of water-intensive commodities from elsewhere, for example the USA.

In this report we first give a brief overview of trade in seafood and seafood production. We then review the basic bioeconomic theory of the fishery and pinpoint why fisheries are different from most other industries. We next review the theoretical literature on trade and renewable resources that shows how unconventional outcomes from trade liberalization can emerge. Given this background, we discuss the most important policy issues in relation to seafood and trade, including sections on managing the global commons and domestic trends in management. In the final section, we discuss specific issues that are germane to the WTO and its rules.

This paper provides a review of current thinking on the economics of international trade in mineral resources. There is not a great deal written on this topic, and so my review is necessarily broad rather than deep. In some cases I am only able to cite related and even tangential literature. I first define what is meant by trade in mineral resources. I then discuss patterns of trade in mineral resources. The paper then moves on to the five topics requested by the World Trade Organization: theoretical and empirical literature on international trade in minerals; trade impacts of mineral abundance and the resource curse; the political economy of mineral trade in resource-abundant states; non-economic considerations associated with strategic mineral resources; and the impact of domestic market structure and regulation on production and trade in minerals.

The General Agreement on Trade in Services (GATS) is broader in policy coverage than conventional trade agreements for goods and, at the same time, offers governments more flexibility, in various dimensions, to tailor their obligations to sector- or country-specific needs. An overview of existing commitments on healthcare and health insurance services shows that WTO Members have made abundant use of these possibilities. While most participants elected not to undertake bindings on healthcare services at the end of the Uruguay Round, nor to make offers in the ongoing negotiations, insurance services have been among the most frequently committed sectors. If there is a common denominator, regardless of the Members concerned (except for recently acceded countries), it is the existence of a lot of 'water' between existing commitments and more open conditions of actual access in many sectors. This may also explain, in part, why there have been very few trade disputes under the GATS to date - far fewer than under the GATT in merchandise trade. Also, governments appear to be generally hesitant in politically and socially sensitive areas to take action in the WTO. There are indications, however, that the same 'players' have acted differently in other policy contexts. For example, it appears that under recent preferential trade agreements (PTAs) the European Communities has been even more cautious in committing on hospital services and protecting scope for (discriminatory) subsidies than under the GATS. Yet, this is not necessarily true for the obligations assumed by many countries, including individual EC Member States, under bilateral investment treaties (BITs). These treaties overlap with the GATS, as far as commercial presence is concerned, and may be used by aggrieved investors to challenge policy restrictions in host countries. However, though frequently invoked, BITs do not meet the same standards, in terms of transparency, open (consensual) rulemaking and legal certainty, as commitments under the GATS.

Tariff water –the difference between bound and applied duties– provides relevant information on domestic trade policy and WTO trade negotiations. This paper examines the general and sectoral tariff structure of 120 economies, using exploratory data analysis.

We consider the purpose and design of the World Trade Organization (WTO) and its predecessor, GATT. We review recent developments in the relevant theoretical and empirical literature. And we describe the GATT/WTO architecture and briefly trace its historical antecedents. We suggest that the existing literature provides a useful framework for understanding and interpreting central features of the design and practice of the GATT/WTO, and we identify key unresolved issues.

I propose a framework within which to interpret and evaluate the major reforms introduced to the GATT system in its transition to the WTO. In particular, I examine the WTO Agreement on Safeguards that has replaced the GATT escape clause (Article XIX), and the Dispute Settlement Process (DSP) that resembles a court of law under the WTO. Using this framework, I interpret the weakening of the reciprocity principle under the Agreement on Safeguards as an attempt to reduce efficiency-reducing trade skirmishes. The DSP is interpreted as an impartial arbitrator that announces its opinion about the state of the world when a dispute arises among member countries. I demonstrate that the reforms in the GATT escape clause should be bundled with the introduction of the DSP, in order to maintain the incentive-compatibility of trade agreements. The model implies that trade agreements under the WTO lead to fewer trade skirmishes but this effect does not necessarily result in higher payoffs to the governments. The model also implies that the introduction of the WTO court, which has no enforcement power, can in fact improve the self-enforceability of trade agreements.

The article analyses the role of international supply chains as transmission channels of a financial shock. Because individual firms are interdependent and rely on each other, either as supplier of intermediate goods or client for their own production, an exogenous financial shock affecting a single firm, such as the termination of a line of credit, reverberates through the productive chain. The transmission of the initial financial shock through real channels is tracked by modelling input-output interactions. The paper indicates that when banks operate at the limit of their institutional capacity, defined by the capital adequacy ratio, and if assets are priced to market, then a resonance effect amplifies the back and forth transmission between real and monetary circuits. The paper illustrates the proposed methodology by computing a supply-driven indicator (IRSIC) and indirect demand-driven impacts on five interconnected economies of different characteristics: China, Japan, Malaysia, Thailand and the United States.

Using a dataset of 138 countries over a period from 1966 to 2004, this paper analyses the relevance of country specific shocks for income volatility in open economies. We show that exposure to country specific shocks has a positive and significant impact on GDP volatility. In particular, we find that the degree to which the cycles of different trading partners are correlated is more important in explaining exporters’ GDP volatility than the volatility of demand in individual export market. We also show that geographical diversification is a significant determinant of countries' exposure to country specific shocks. Keywords: income volatility, geographical export diversification, external shocks.

Two institutions provide multilateral venues for countries to discuss food safety measures at the international level: the Codex Alimentarius Commission (Codex) and the World Trade Organization. Both institutions encourage their members to base food safety standards on scientific evidence. In this paper we provide a description of how food safety related scientific evidence is generated and how it is used in the context of risk assessment for international standard-setting at CODEX and in WTO trade disputes. In particular, we discuss the processes leading to policy conclusions on the basis of scientific evidence, with a focus on the interactions involved between private and public sector actors and those between “scientific experts” and others. We identify weaknesses in the current institutional set-up and provide suggestions on how to improve the interaction between different players at the national and international level so as to strengthen the existing system and increase its cost efficiency.

Recent empirical evidence has shown that trade liberalization promotes innovation and productivity growth in individual firms. This paper argues that different types of trade liberalization – multilateral versus regional – may lead to different R&D and productivity levels of firms. Trade agreements between countries are modelled with a network: nodes represent countries and a link between the nodes indicates the existence of a trade agreement. In this framework, the multilateral trade agreement is represented by the complete network while the overlap of regional trade agreements is represented by the hub-and-spoke trade system. Trade liberalization, which increases the network of trade agreements, reinforces the incentives for firms to invest in R&D through the creation of new markets (scale effect) but it may also dampen these incentives through the emergence of new competitors (competition effect). The joint action of these two effects within the multilateral and the regional trade systems gives rise to the result that, for the same number of direct trade partners, the R&D effort of a country in the multilateral agreement is lower than the R&D effort of a hub but higher than the R&D effort of a spoke. This suggests that a ”core” country within the regional trade system has higher R&D and productivity level than a country with the same number of trade agreements within the multilateral system whereas the opposite is true for a ”periphery” country. Additionally, the paper finds that while multilateral trade liberalization boosts productivity of all countries, regional trade liberalization increases productivity of core economies but may decrease productivity of periphery economies if the level of competition in the new trade partner countries of the periphery economy is ”too high”. Furthermore, the aggregate level of R&D activities within the multilateral trade agreement exceeds that in the star – the simplest representative of the hub-and-spoke trade system.

WTO arbitrators rely on economics to establish the permissible retaliation limits authorized by the Dispute Settlement Understanding (DSU) which arguably serves to enforce the overall agreement. We examine how theoretical and quantitative economic analysis has and can be used in this stage of the DSU process. First, we identify, characterize, and categorize the major classes of disputes – e.g., those affecting import protection versus export promotion – and use the Bagwell and Staiger interpretation of the WTO principle of reciprocity to provide a theoretical framework that arbitrators can use to identify the maximum level of retaliatory countermeasures. Second, we allocate each of the ten DSU arbitrations that have taken place thus far into one of these categories and compare the arbitrators’ actual approach with the theory. Third, we use this framework to identify three crucial elements to the arbitrators' decisionmaking process for each case: i) the formula that they decide to adopt for identifying appropriate countermeasures, ii) their political-legal-economic decision on a WTOconsistent counterfactual to use to implement the formula, and iii) the quantitative methods they use to necessarily construct the (unobserved) WTO-consistent counterfactual. We examine not only the arbitrations that have taken place thus far, but our approach also illustrates a template for many additional types of arbitrations likely to take place under the DSU. Finally, in the disputes in which this reciprocity approach has not been used, we identify procedural difficulties that arbitrators confront thus highlighting the constraints that hinder their use of economic analysis in practice.

As an internationally standardized product nomenclature, the Harmonized System (HS) is used by WTO Members in their schedules of concessions and in the definitions of product coverage for a number of WTO agreements. The Harmonized System is normally amended by the World Customs Organization every four to six years. These amendments pose considerable challenges for the WTO and its Members. On the one hand, Members need to periodically update their historical schedules of concessions into the latest nomenclature. On the other hand, these amendments may have implications for the definition and thus also the implementation of some WTO agreements where the product coverage is defined in terms of the HS. In either case, the product codes and/or descriptions in the old HS version need to be transposed precisely into those in the new version of HS nomenclature in order to retain the historical concessions or the product coverage unchanged. Given the complexity of HS amendments, this process could be very technical and sometimes tricky. This paper starts by providing an overview of the HS amendments and proposing a categorization of those HS changes in the context of transposition. It then looks back at the history of the introduction of the HS and its subsequent amendments into the WTO schedules and assesses the difficulties and problems which have been faced by WTO Members. On the basis of such analysis, it introduces the successful procedures and methodologies used by WTO Members and the WTO Secretariat to deal with the recent HS2002 transposition. The paper also discusses the implications of the HS amendments to three WTO agreements and the possible approaches to transpose their product lists into a new HS nomenclature.

The paper discusses the efforts deployed by various players, mainly multilateral financial institutions, regional development banks, export credit agencies, to mobilize greater flows of trade finance for developing countries, with a view to help them integrate in world trade. As an institution geared towards the balanced expansion of world trade, the WTO is in the business of making trade possible. Its various functions include reducing trade barriers, negotiating and implementing global trade rules, and settling disputes on the basis of the rule of law. The WTO is also interested in strengthening the "supply-side" of developing countries so that they can respond to new market opportunities. To this end, it supports various initiatives aimed at improving the "trade infrastructures" of developing countries, ranging from the ability to meet international product, safety and sanitary standards, to run efficient customs, or to participate effectively to the multilateral trade negotiations by training public servants. The WTO carries out various initiatives with other partners (public and private sector institutions), in the context of its own technical assistance program, or in the context of multi-agency projects such as the Integrated Framework or the Aid-for-Trade Initiative. Since more than 90% of trade transactions involve some form of credit, insurance or guarantee, one can reasonably say that trade finance is the lifeline of trade. Producers and traders in developing or least-developed countries need to have access to affordable flows of trade financing and insurance to be able to import and export, and hence integrate in world trade. From that perspective, an efficient financial system is one indispensable infrastructure to allow trade to happen. In line with the above initiatives, the WTO has been following actively, and at times, directly supporting, initiatives to boost the availability of trade finance in developing and least-developed countries wherever it was needed. Since the WTO is not a financial institution, it has been supporting in the past few years partners engaged in this effort such as international financial institutions, export credit agencies, large banks and regional development banks. Initially, the WTO has been asked by its members at several points in recent years to examine the issue of availability of trade financing – as a key infrastructure needed by developing and leastdeveloped countries to integrate in world trade. Paragraph 36 of the Ministerial Declaration of Doha requested WTO Members to examine, and if necessary come up with recommendations, on measures that the WTO could take, within its remit, to minimize the consequences of financial instabilities on their trade opportunities. In the context of the newly created Working Group on Trade, Debt and Finance (WGTDF), the interruptions of the flows of trade finance in emerging markets during the Asian and Latin American financial crises were quickly identified as concerns by Members, as well as the chronic difficulties of low income Members to secure more affordable flows of trade financing in the long-run. These concerns were channelled to the WTO Ministerial Meetings in Cancun (2003) and Hong-Kong (2005).2 During this period of examination, the Heads of the IMF, World Bank and the WTO agreed at the General Council Meeting on Coherence of 2002 to form an expert group including all interested parties, multilateral and regional public institutions, export credit agencies, private banks to examine what went wrong in this segment of financial markets, and how to create an enabling environment in local markets to provide adequate flows of trade finance on a on-going basis. In chairing one of these meetings, the Director-General of the WTO defined the role of the WTO in this area: encouraging liberalization of this type of financial services under the financial services agreement, being a regulator of export credit and guarantee subsidies under the ASCM, and serving as a forum to discuss WTO-compatible ways of providing support to developing countries. Conclusions by the Working Group were presented at the WGTDF, and later at the General Council. WTO Secretariat work on this topic up to 2003, in particular its contribution to the WGTDF and to the expert group, was summarized in WTO Discussion Paper 2.4 While the liquidity in financial markets improved from 2002 until the recent turmoil created by the crisis of the sub-prime mortgage markets, trade finance remained an issue for concern for WTO Members, in particular the poorest, which do not have access to international financial markets or for emerging markets which remain prone to changes in market sentiment, and hence credit rating. Despite the rapid development of "trade finance facilitation" schemes developed by regional development banks and the IFC, with immediate success in low income countries, the issue of availability of trade finance came back among other "supply-side" constraints identified by the Aidfor- Trade Task Force, after the WTO Ministerial Meeting in Hong-Kong. While the mandate of the WTO under the Aid-for-Trade is essentially one of evaluation and monitoring, it may be in cases one of advocacy. Based on the work being carried out since 2002, and after consultation with partners (regional development banks, multilateral institutions, export credit institutions,...), input by the WTO Secretariat to boost the availability of trade finance for developing countries under the Aid-for-Trade umbrella was welcomed by Members. Lack of trade financing and guarantee infrastructures were identified as one of the barriers to integration of low income countries in world trade by each of the three regional Aid-for-Trade Reviews. It was acknowledged that the current Aid-for-Trade Initiative could provide the extra leverage to convince WTO partners to deliver more plentiful of trade credit and guarantees to WTO members that need it the most. This paper provides background on the difficulties of some countries and traders to access affordable trade credit and finance, on the growing divide between these low income countries and economically advanced countries in handling modern trade finance instruments, and on the joint reflection undertaken by the WTO, most recently under the Aid-for-Trade programme, and previously under the umbrella of the WGTDF and the Coherence Mandate, to help strengthen developing countries' capacities in this area.

Economic theory has made considerable progress in explaining why sovereign countries cooperate in trade. Central to most theories of trade cooperation are issues of self-enforcement: The threat of reprisal by an aggrieved party maintains the initial balance of concessions and prevents opportunism. However, economic scholarship has been less coherent in explaining why countries choose to settle and enforce their trade disputes with the help of an impartial third party, a “trade court”. Typically, economists focusing on the purpose of trade agreements have assumed away the very reasons why institutions are needed, since under standard assumptions, neither defection from the rules nor disputes are expected to occur. This paper is a step towards the formulation of a coherent economic theory of dispute settlement. It challenges traditional models of enforcement (primarily concerned with acts of punishment) for being insufficient in explaining the existence of dispute settlement institutions. We perform a comprehensive analysis of the economics of dispute settlement institutions and demonstrate to what extent the literatures of trade cooperation and dispute institutions are (and should be) interlinked. On the basis of these theories, we show that dispute settlement institutions in trade agreements may assume a variety of roles, including that of an information repository and disseminator, an honest broker, an arbitrator and calculator of damages, an active information gatherer or an adjudicator.

This paper examines the impact of telecommunications liberalization in Africa on both sectoral performance and economic growth. Besides unilateral measures, we account for WTO commitments fostering the credibility of reforms. Actual regulatory quality plays a major role in bringing down prices and in improving access to telecommunication services in Africa. Competition, notably in the mobile telephony segment, also improves sector performance. Increasing access to mobile networks by 1 per cent translates into a 0.5 per cent increase in real GDP per capita. In Africa, multilateral commitments do not reflect recent reforms. However, at the global level, adherence to the WTO Reference Paper entails lower prices.

The General Agreement on Trade in Services (known as the GATS) is an important new element in the international framework that affects the regulation of every WTO Member's financial sector. However, except for a limited number of country-specific case studies, no attempt has been made to compare WTO commitments to open the domestic banking sector to foreign banks with actual regulatory practice in a systematic and comprehensive manner on a cross-country basis. Nor has much attention been devoted to systematically and comprehensively assess the degree to which WTO Members discriminate against foreign bank. This paper draws upon a new and comprehensive dataset consisting of the commitments countries made at the WTO and the regulations actually imposed on foreign banks by those countries. The dataset covers 123 WTO Members for whom there was also information available on their current regulatory regime for banking (based on the responses to a World Bank survey as discussed in Barth, Caprio, and Levine (2006)). On the basis of that data, the authors develop indices measuring the degree of openness to foreign banking based upon both commitments made and actual regulatory practice, with a view to assessing the overall extent to which countries open their borders to foreign banks more than they are legally obliged to do based upon their WTO commitments. The dataset is also used to assess the overall extent to which countries discriminate against foreign banks by regulating them less favorably than domestic banks. Although our results are still quite preliminary, they do show substantial divergences between commitments and practices. Indices of market openness and discrimination reveal wide differences among the 123 countries in the sample. The paper also identifies various factors that help explain the level of commitments that WTO Members have made.

This paper attempts to fill a gap in the trade literature by providing a comprehensive overview of services liberalization commitments in the new generation of preferential trade agreements (PTAs) as compared to prevailing GATS commitments and Doha Round offers. By developing a new database, the paper reviews the commitments undertaken by 29 WTO Members (counting the EC as one) under mode 1 (cross-border supply) and mode 3 (commercial presence) in 28 PTAs negotiated since 2000. The paper presents a general analysis from both a cross-country and cross-sector perspectives, and also examines in more detail the GATS+ commitments undertaken in a number of key sectors (audiovisual, distribution, education, financial, professional, and telecommunication services). The paper also discusses the potential economic costs arising from these preferential agreements, as well as the potential implications for the multilateral trading system, and for the Doha round of negotiations in particular. The paper concludes by discussing possible approaches to overcome the potential downsides of PTAs, including proposals for a more pro-active role for the WTO in the surveillance of these agreements.

This paper develops a set of time series models to provide short-term forecasts (6 to 18 months ahead) of international trade both at the global level and for selected regions. Our results compare favourably to other forecasts, notably by the International Monetary Fund, as measured by standard evaluation measures, such as the root mean square forecast error. In comparison to other models, our approach offers several methodological advantages, inter alia, a focus on import growth as the core variable, the avoidance of certain difficulties affecting the performance of structural models, the selection of variables and lags on the basis of theoretical considerations and empirical testing as well as a full documentation of the modelling process.

This paper analyses the possible gains from regional and multilateral liberalization of financial services trade for African countries taking into account the implications of such liberalization for financial regulation and capital account liberalization. It also describes existing efforts to integrate financial markets within four African regions (WAEMU, CEMAC, SADC and COMESA) and discusses the existing GATS commitments of the relevant countries with respect to financial services. Although the regions differ significantly, there is scope for further regional integration in all of them. Significant scope also exists for further multilateral liberalization of financial services, in particular with respect to Mode 3.

Economists have increasingly become involved in trade remedy and litigation matters that call for economic interpretation or quantification. The literature on the use of econometric methods in response to legal requirements of trade policy is rather limited. This article contributes to filling this gap by demonstrating the efficacy of using a simple ‘probabilistic’ model in analyzing the ‘likelihood’ of injury to the local industry concerned, following a finding of continuation or recurrence of dumping (or countervailable subsidies). The legal concept of ‘likelihood’ is not only particularly well-suited to illustrate the systemic need for trade lawyers and economists to cooperate. It is also of imminent practical relevance with a groundswell of ‘sunset’ reviews looming on the horizon. We discuss the significance of economic analysis for trade remedy investigations by reviewing the literature, the applicable WTO rules and, in particular, the pertinent case law. The potential value of probabilistic simulations for ‘likelihood’ determinations is exemplified using a real-world application. Using data from past United States International Trade Commission investigations, we find that a probabilistic model that takes account of the uncertainty surrounding economic parameters reduces the risk of misjudging the effect on the domestic industry of a termination of trade remedies.

This paper analyzes the risks of preference erosion arising from MFN trade liberalization in manufactured products. It focuses on developing countries that receive non-reciprocal preferences in the markets of United States, EU, Japan, Canada and Australia. The paper estimates preference margins as the difference between non-reciprocal preferential rates received by individual countries and the best available (MFN or better-than-MFN) treatment received on average by all other suppliers. Most previous work on this subject has compared the preferential rates for individual countries with MFN rates alone, which the paper found to have the effect of over-stating the margin at risk from erosion following MFN reductions. The paper also considers the effect of less than full utilization of preference margins by beneficiaries, but a lack of data prevented the inclusion of this additional moderating factor relating to erosion risk. The paper finds that developing countries as a whole do not loose from preference erosion following MFN liberalization, although significant gains and losses underlie the estimate of the average. Almost all least-developed countries either lose from preference erosion or are unaffected by it because their exports are already largely MFN duty-free. A large number of LDCs are in the latter group. The main sectors where preference erosion occurs are textiles, fish and fish products, leather and leather products, electrical machinery and wood and wood products. As regards trade solutions to preference erosion, options are somewhat limited. Improved utilization rates may help certain countries but certainly do not offer a generalized solution. Limited scope exists for expanding the coverage of preference schemes within the destination markets considered in the paper. Other destination markets might offer some prospect, but these are limited by the fact that the markets studied dominate the trade flows of the beneficiary countries.