metadata: authors: 0: author: Hertel, Thomas W.
1: author: Winters, L. Alan
count: Bangladesh,Brazil,Cameroon,China,Indonesia,Mexico,Mozambique,Philippines,Russian Federation
docna: 0: docna: Poverty impacts of a WTO agreement :
            synthesis and overview
docty: Policy Research Working Paper
subtopic: Labor Markets,International Trade and Trade Rules,Food Security,Inequality,Rural Labor Markets,Trade and Multilateral Issues
teratopic: Macroeconomics and Economic Growth,Rural Development,International Economics and Trade,Poverty Reduction
abstracts: cdata!: This paper reports on the findings from
            a major international research project investigating the
            poverty impacts of a potential Doha Development Agenda
            (DDA). It combines in a novel way the results from several
            strands of research. Intensive analysis of the DDA Framework
            Agreement pays particularly close attention to potential
            reforms in agriculture. The scenarios are built up using
            newly available tariff line data and their implications for
            world markets are established using a global modeling
            framework. These world trade impacts, in turn, form the
            basis for 12 country case studies of the national poverty
            impacts of these DDA scenarios. The focus countries include
            Bangladesh, Brazil (two studies), Cameroon, China (two
            studies), Indonesia, Mexico, Mozambique, the Philippines,
            Russia, and Zambia. The diversity of approaches taken in
            these studies allows the paper to reflect local conditions
            and priorities and illustrates many important facets of the
            trade and poverty link. It does, however, limit the ability
            to draw broader conclusions. Thus an additional study
            provides a 15-country cross-section analysis, and a global
            analysis provides estimates for the world as a whole.
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repnme: repnme: Poverty impacts of a WTO agreement :
            synthesis and overview
display_title: Poverty impacts of a WTO agreement :
            synthesis and overview
listing_relative_url: /research/2005/10/6350212/poverty-impacts-wto-agreement-synthesis-overview
topicv3: Agriculture and Food Security m1326205 435,Labor Markets m1326488 855,Poverty m1326687 695,Trade m1326924 698,Trade Policy and Integration m1327407 775
publishtoextweb_dt: 2010-07-01T00:00:00Z
historic_topic: Macroeconomics and Economic Growth,Rural Development,International Economics and Trade,Poverty Reduction
no_of_pages: 45
model_extractions: WPS3757

# **Poverty Impacts of a WTO Agreement: Synthesis and**

# **Overview**

by Thomas W. Hertel and L. Alan Winters* A version of this paper will appear as Chapter 1 in _Poverty and the WTO: Impacts of the Doha Development Agenda_ , Thomas W. Hertel and L. Alan Winters (eds.), forthcoming from The World Bank, Washington, D.C.

## World Bank Policy Research Working Paper 3757, October 2005

_The Policy Research Working Paper Series disseminates the findings of work in progress to encourage the exchange of ideas about development issues. An objective of the series is to get the findings out quickly, even if the presentations are less than fully polished. The papers carry the names of the authors and should be cited accordingly. The findings, interpretations, and conclusions expressed in this paper are entirely those of the authors. They do not necessarily represent the view of the World Bank, its Executive Directors, or the countries they represent. Policy Research Working Papers are available online at http://econ.worldbank.org._

*Hertel is Distinguished Professor at Purdue University and consultant to the World Bank and Winters is Director of the Development Economics Research Group, World Bank. This research was conducted while Hertel was on leave with the World Bank. Financial support from the Bank-Netherlands Partnership Program is gratefully acknowledged. The authors thank William Cline for extensive comments on this paper as well as the research project.
# Summary

This paper reports on the findings from a major international research project investigating the poverty impacts of a potential Doha Development Agenda. It combines in a novel way the results from several strands of research. Firstly, it draws on an intensive analysis of the DDA Framework Agreement, with particularly close attention paid to potential reforms in agriculture. The scenarios are built up using newly available tariff line data and their implications for world markets are established using a global modeling framework. These world trade impacts, in turn, form the basis for twelve country case studies of the national poverty impacts of these DDA scenarios. The focus countries include: Bangladesh, Brazil (2 studies), Cameroon, China (2 studies), Indonesia, Mexico, Mozambique, Philippines, Russia, and Zambia. The diversity of approaches taken in these studies allows them to stress local conditions and priorities and illustrates a wide range of facets of the trade-poverty links. It does, however, limit the ability to draw broader conclusions. Thus an additional study which provides a 15 country cross-section analysis is aimed at this objective, and a global analysis provides estimates for the world as a whole.

# A few of the main findings follow:

- The liberalization targets under the DDA have to quite ambitious if the round is to have a measurable impact on world markets and hence poverty.

- Assuming an ambitious DDA, we find the near-term poverty impacts to be mixed; some countries experience small poverty rises and others more substantial poverty declines. On balance, poverty is reduced under this DDA, and this reduction is more pronounced in the longer run.

- Allowing minimal tariff cuts for just a small percentage of special and sensitive products virtually eliminates the global poverty reduction due to the DDA.

- Deeper cuts in developing country tariffs would make the DDA more poverty friendly.

- Key determinants of the national poverty impacts include: the incomplete transmission of world prices to rural households, barriers to the mobility of workers between sectors of the economy, as well as the incidence of national tax instruments used to replace lost tariff revenue.

- In order to generate significant poverty reductions in the near term, complementary domestic reforms are required to enable households to take advantage of new market opportunities made available through the DDA.

- Sustained long term poverty reductions depend on stimulating economic growth. Here, the impact of the DDA (and trade policy more generally) on productivity is critical. In order to fully realize their growth potential, trade reforms need to be far reaching, addressing barriers to services trade and investment in addition to merchandise tariffs.

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# **Introduction and Motivation**

International trade is arguably the most direct economic means by which rich countries influence poor countries. Exports of manufactures by developing countries have increased rapidly over the last 30 years, due in part to falling tariffs in the OECD as well as in developing countries, declining transport costs, increased specialization, and sustained economic growth. Whereas manufactures accounted for just 25% of developing country exports in 1965, this share subsequently tripled to nearly 75% over the next three decades, while agriculture’s share of developing country exports has fallen from 50% to under 10% (Hertel and Martin, 2000). Increased manufactures trade has benefited many developing countries, helping them make the transition out of agriculture, and lifting many out of poverty.

Some of the poorest developing countries, however, have gained relatively little from increased manufactures trade. Market access for their most competitive manufactured export remains highly restricted (apparel), as it does for their key source of employment and exports, farming, and the problem with agricultural exports is exacerbated by the massive government subsidies provided to OECD farmers. Turning to poverty within the poorest countries, developed-country agricultural policies become even more central. A majority of the poor are concentrated in rural areas, where agriculture is usually the main source of economic activity (World Bank, 2004), and in the poorest developing countries, large shares of households (including most of the very poorest) depend on self-employment in agriculture for virtually all of their income (Hertel et al., 2004b). Together, these facts highlight the potential influence that multilateral trade policies can have on poverty in developing countries.
The Doha Development Agenda (DDA) negotiations, sponsored by the World Trade Organization, experienced a blow in Cancun, Mexico, precisely over the question of rich country agricultural support and its potential impacts on poverty in developing countries. The Doha negotiations are now emphasizing the need to better understand the linkages between trade policies – particularly in rich countries – and poverty in the developing world. Moreover, poverty reduction is now widely accepted as a central focus for development efforts and has become the main mission of the World Bank and other development institutions. For example, the “Millennium Development Goals” commit the international community to halve poverty by 2015, and locate several key means to this goal in international trade.

With this high level of policy interest, it is hardly surprising that the issue of trade and developing-country poverty has become a focus of much research activity over the last several years. This paper summarizes a research program that offers the first comprehensive analysis of the national poverty impacts of specific policy reforms proposed under the auspices of the WTO.<sup>1</sup> It combines the results from several strands of research in a novel way. First, it draws on an intensive analysis of the July 2004 DDA Framework Agreement, particularly of potential reforms in agriculture, which, as we shall see, have special significance to the poor. The scenarios analyzed below are built up from newly available tariff line data on bound and applied tariff rates. Similarly detailed analysis is undertaken in the case of domestic support for agriculture and export subsidies, as well as for non-agricultural market access.

> 1 Most of the studies in the program are included in the World Bank Policy Research Working Paper series. All are available at https://www.gtap.agecon.purdue.edu/poverty

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Second, the research assesses the implications of these alternative Doha scenarios for world markets. These are established using a state-of-the-art, global modeling framework which incorporates the most recent econometric evidence on supply and demand elasticities – with particularly close attention paid to food and agriculture markets which prove crucial in assessing the poverty impacts of the DDA. The outputs of this part of the project include export and import price changes for each region of the world, along with changes in export volumes.

Third, these world trade impacts form the basis for analyzing the poverty impacts of the DDA on ten individual countries by way of a dozen case studies. These case studies use a variety of innovative techniques to establish the potential impacts of the DDA on different household groups and, in some cases, different regions within the country. The focus countries are: Bangladesh, Brazil (2 studies), Cameroon, China (2 studies), Indonesia, Mexico, Mozambique, Philippines, Russia, and Zambia.

Some case studies also examine other poverty policies in addition to trade reforms – for example education reform or agricultural extension services. Sometimes these are complementary to the Doha Round in the sense of enhancing its effect, but more often they are independent. They are explored here as yardsticks against which trade reform can be measured and as suggestions as to how governments can seek to overcome any adverse poverty effects from the Round. However, we do not subscribe to the view that such ‘complementary policies’ are necessary for the Doha Round to be beneficial.

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# **1. Choice of Methodologies**

In organizing the research summarized here, we had two contrasting objectives. On the one hand, we wanted the studies to be consistent with one another in order to ensure an accurate global assessment of the DDA, as well as comparability across studies. On the other hand, research into the poverty impacts of trade reform is new, and almost the only consensus it has reached is that countries differ. From this perspective, we wanted both to encourage a variety of approaches at the country level and to exploit the specific skills and knowledge of case-study authors to gear their country models most closely to local characteristics and issues.<sup>2</sup> The project, therefore, is a composite in which the global analysis – the methodology for deriving the global findings and passing them over to the national case studies – is unique and consistent with current standards in the field of quantitative trade policy analysis, while the country case studies display a wide range of methodological innovations and topical design features. This variety has been fruitful, with different country studies emphasizing alternative links between trade and poverty and providing a diversity of insights. Nevertheless, as a check and in order to permit us to draw some broader conclusions, we have included two more uniform exercises: first, a 15 country cross-section analysis, in which a common, fully integrated trade-poverty analysis is provided for a range of developing countries. Second, we have included a global analysis of aggregate poverty impacts derived by applying simple poverty elasticities to the predicted outcomes for developing countries in a global simulation of a prospective Doha agreement.

> 2 The forthcoming book on Globalization and Poverty, Harrison (2005), adopts the same strategy, combining a set of cross-country econometric studies with several individual country case studies.

6
The prevailing methodology in the research is Computable General Equilibrium (CGE) analysis. This is the dominant methodology for the _ex ante_ analysis of the economic consequences of comprehensive trade agreements – be they multilateral or bilateral in nature (Shiells and Francois, 1994). The reason for this dominance is that no other approach offers the same flexibility for looking at prospective changes in trade policy, while respecting the fundamental economy-wide consistency requirements such as balance of payments equilibrium and labor and capital market constraints that are so important in determining the consequences of comprehensive trade reforms. The CGE approach has come under substantial criticism (e.g., from Jorgenson, 1984; McKitrick, 1998; Kehoe, 2005) for having insufficient econometric underpinnings, and for not being adequately validated. Accordingly, in this project we offered a number of econometricbased analyses that focus on key dimensions of the trade and poverty question, including: price transmission from the border to households, cropping choices by farm households, labor market participation decisions, and the intersectoral movement of labor. In addition, when we assess the global market impacts, we use a CGE model based on the most recent econometric evidence on supply and demand elasticities and for which some (modest) validation has been undertaken.

The majority of the studies in the project and summarized here are based on _comparative static_ analysis. Thus the authors abstract from the impact of trade reform on investment and productivity and therefore economic growth. There are two reasons for this emphasis. First, most of the issues that arise in the popular debate over the poverty impacts of trade policy are fundamentally comparative static in nature. Concerns about: the urban poor being adversely affected by higher food prices, the potential loss of jobs 7
by women in the apparel sector, or the poverty impacts on low income farmers in developing countries are all questions about the redistributive impact of trade policy reform. To answer them one needs a disaggregated, comparative static framework. Of course, we are also keenly interested in the potential for economic growth to alleviate poverty, and five of the studies utilize and dynamic framework that accounts for the growth effects of changes in investment deriving from trade policy reform. However, quantifying the impact of trade reform on growth and poverty through channels such as the effect on productivity or the benefits of increasing the range of available goods remains a lively topic for current research on which consensus has yet to emerge. Hence our second reason for using the comparative static approach is to avoid any appearance of overstating the poverty alleviating benefits of liberalization.

In the end, it must be said that this project has proven to be a very ambitious undertaking – attempting to bridge micro-based research focusing on the choices and opportunities facing individual households in developing countries with macro-based research on the global impacts of multilateral trade policy reform. The payoff to this exercise must be judged by the insights offered. And it is to these that we now turn.

# **2.   The Global Impact of the Doha Agenda**

Kym Anderson and Will Martin (2005) take as its starting point the July WTO Framework Agreement for the Doha Agenda. It explores the issues flowing out of this document – and in particular the annexes dealing with export subsidies, domestic support and market access in agriculture, as well as market access for non-agricultural goods. It examines seven different Doha scenarios, of which we adopt one as the core scenario for 8
the project. In constructing this scenario, the authors have taken considerable care to distinguish those trade reforms that are actually being negotiated under the Doha Development Agenda from those that have already been agreed to previously. This distinction is complicated by the fact that virtually all of our policy data bases pre-date completion of the Uruguay Round Agreement. In fact, the starting point for all of the analysis in this project is the year 2001 – the most recent one for which comprehensive data are available for tariffs, domestic support and export interventions. Therefore, prior to constructing the Doha scenario, a “pre-experiment” is undertaken in order to account for the major developments in trade policy since 2001. These include: tariff reforms undertaken by newly acceding WTO members – most notably China, the phase-in of remaining Uruguay Round commitments by developing countries, EU enlargement to 25 countries, and the abolition of export quotas on textiles and apparel under the Agreement on Textiles and Clothing. Thus, even though the full impact of some of these reforms is yet to be felt, the analysis in this project looks beyond these reforms, envisioning a global economy in which they have been fully implemented, and focusing on the further impacts of trade liberalization undertaken in the context of the Doha negotiations.

The most important finding from Anderson and Martin (2005) is that, unless the Doha Agenda is considerably more ambitious than the Uruguay Round in terms of depth of cuts in bound tariffs and domestic support, it will achieve little development stimulus. The main problem on the market access side is binding overhang. For example, in agriculture – one of the key areas of the Doha Agenda with respect to trade and poverty – bound tariffs in developing countries average 48% while applied tariffs average are only 21%. In the case of the least developed countries, the respective figures are 78% and 9
13%! Even in the EU (21% binding vs. 12% applied) and USA (6% binding vs. 3% applied) there is substantial binding overhang in agriculture. So for many countries/products, bound tariffs can be cut deeply with no impact on applied protection and hence international trade.

In the central Doha scenario featured in our project, agricultural tariffs are cut using a tiered formula, with marginal cuts changing at 15 and 90 percent bound tariff rates. The marginal cuts are 45 percent for the lowest agricultural tariffs, 70 percent for tariffs in the middle range and 75 percent marginal cuts for the highest tariffs.<sup>3</sup> For developing countries, the inflection points are placed at 20, 60 and 120 percent bound tariff levels in agriculture, with marginal cuts of 35, 40, 50 and 60 percent, respectively. In non-agriculture, tariffs are subjected to proportional cuts of 50 percent for developed and 33 percent for developing countries. The Least Developed Countries (LDCs) are not required to cut tariffs under this central scenario. Box 1 summarizes our central Doha scenario.

There is much more to the DDA than just agriculture and non-agricultural market access – for example, trade facilitation, services liberalization and rules on anti-dumping and regionalism. We focus on the former issues partly because they are quantifiable and provide a large agenda in themselves. Mainly, however, they are likely to be the major issues both in terms of effects and in terms of negotiators’ need for detailed quantitative advice. Moreover, the other issues are basically additive to the analysis of market access for goods, so that as their outcomes and consequences become clear they may be added to our results to get an overall picture.

> 3 For example, a tariff of, say, 100% is cut by 66.95%: = [15%*0.45 + (90-15)%*0.70 + (100-90)%*0.75]. By applying the cuts at the margin we avoid the discontinuities implied by the July Framework.

10
As a consequence of the relatively ambitious tariff cuts we analyze, average world-wide tariffs for all merchandise trade drop from 4.7% in the baseline to 3.2%. This masks rather different cuts for countries at different income levels. High income countries’ tariffs fall from 2.9 to 1.6%, middle income countries’ tariffs from 7.2 to 6.3% and low income tariffs (including LDCs which do not cut tariffs at all) from 15.6 to 14.6%. (Anderson and Martin report these cuts on a more detailed basis in their paper.) In the case of domestic support, there is also a problem of bound vs. applied protection, with bindings generally much higher than applied Aggregate Market Support (AMS). But even more severe is the definition of the AMS itself – in particular its reliance on administered prices as a benchmark. This feature makes it possible for administrators in some countries to bring programs into WTO compliance with the stroke of a pen – simply by abolishing the administered price! The core Doha scenario assumes that industrial countries with domestic support in excess of 20 percent of production cut their bound AMS commitments by 75 percent, while others cut by 60 percent. Developing countries are assumed to cut their AMS by 40 percent. Even with these ambitious reductions, only six WTO members would be required to reduce actual support, based on 2001 notifications: Australia, EU, Iceland, Norway, Thailand and USA.

Export subsidies are the one area where bold cuts (full elimination) are on the table, but these have diminished in importance over time. At present, they remain a significant factor only in the case of the EU (and in the US for dairy products) – and the abolition of export subsidies has been made conditional on equivalent treatment of food aid and state-trading. Preliminary estimates suggest that reform of the latter two items will have little impact, but the linking of these features to the WTO negotiations makes 11
the whole process much more complex. Our central Doha scenario assumes export subsidies are abolished.

In addition to this central Doha scenario, we also consider an important variant in which developing countries fully reciprocate the tariff cuts made by developed countries, thereby eliminating one of the historical pillars of Special and Differential Treatment. The rationale for considering this alternative, which we label Doha-All, will become clear when we discuss the results of the global poverty analyses below. Under Doha-All, average merchandise tariffs in the middle and low income countries drop further – to 5.6 and 13.4 percent, respectively. In the case of the low income countries this represents a larger incremental cut in average tariffs than was achieved in the central Doha scenario itself. Finally, we also explore on occasions a Full liberalization (Full Lib) scenario in which all explicit trade policy barriers identified in the database are abolished.

Assuming that negotiators do indeed honor their initial vision as set forth in Doha and make significant cuts in agricultural and non-agricultural protection, what impact might this have on poverty? Will they really put Development squarely into the Doha Agenda? We turn next to the studies that endeavor to answer this question.

We begin with the impact of the Doha reforms on world market prices. Thomas Hertel and Maros Ivanic (2005) utilize a global computable general equilibrium model to assess the potential impact on world market prices and trade volumes. As established in Anderson and Martin (2005), agricultural protection is central to any assessment of global trade reform and the global analysis in this study bears this out. The trade reform scenarios invariably have the biggest impact on prices and trade volumes for farm and food products, followed by textiles and apparel. Given the predominance of the poor in 12
rural areas and their heavy reliance on unskilled wages elsewhere, these are the key industries when it comes to any poverty assessment. The strongest world price increases are for the heavily subsidized farm products: rice and other grains, cotton, dairy products and beef. The ranking of the price rises arises from the composition of cuts – both across the three sets of agricultural distortions and across countries. The other important point made in this paper is that, given the increasingly differentiated nature of traded products, there is no one “world price” and careful attention must be paid to bilateral patterns of trade and country-specific price changes.

Finally, Hertel and Ivanic outline the methodology for transmitting the generated price and volume changes to the national case studies. This turns out to be quite complex, and represents an important innovation in the linking of global economic outcomes with national impacts.

# **3. Price Transmission**

Our analysis of the country case studies is structured around the conceptual framework laid out by Winters (2002) and Winters, McCulloch and McKay (2004). This begins with the question of price transmission – namely how much of the world price shock is transmitted to producers and consumers?

With a majority of the poor in most countries located in rural areas – often poorly served by transportation and communication infrastructure, it is important to ask whether developments in global markets will really have an impact on these households. Of course, this is an empirical question, subject to econometric investigation, and this is precisely what Alessandro Nicita (2004) does in the case of Mexico. He shows that 13
indeed world prices are differentially transmitted to the regions of the country, depending on their distance from the border and the nature of the commodity in question. He begins his analysis by examining the extent of “pass-through” from international prices to domestic prices at the border. Here, he finds that for manufactured goods, about twothirds of the international price change passes through to the domestic market, whereas the comparable figure for agriculture is just one-quarter.

Nicita’s econometric estimates also show that the transmission of world market price changes diminishes with distance from the border. In addition, urban areas are more sensitive to border prices changes, when compared to rural areas. Therefore, he concludes that in the more remote, rural regions of Mexico, very little of the international price changes will be felt – particularly in the case of agricultural products. As a consequence, the impact of the Doha scenarios – which have only modest impacts on world prices, anyway – are negligible in rural Mexico, except in the North, near the US border, where rural households see some small gains. Urban consumers face higher food prices and a small decline in unskilled wages as the privileged Mexican position in the US market is eroded by MFN tariff cuts. Thus the urban poor experience small losses.

Nicita (2005) also explores the impact of complementary domestic reforms that might permit rural producers to respond to improved world market conditions without incurring additional costs (e.g., a productivity gain or the employment of surplus labor). This enhances the welfare outcome for rural households in all regions excepting the South. Rural households in the South benefit from Doha only when the reforms are accompanied by enhanced price transmission – e.g., through improved transport and 14
market infrastructure. So there is an important interaction between price transmission and the distribution of gains from global trade reforms.

One of the poorest countries in the world, which also has very poor infrastructure and is plagued by high domestic marketing costs, is Mozambique. In fact, recent work by Arndt et al. (2000) estimates producer-consumer margins as high as 300% (for cassava). The biggest margins reported in their study are for food products, which tend to dominate both the consumption and production bundles of the poor. So the existence and behavior of these margins is critically important for any poverty study. Channing Arndt (2005) explores this issue in the context of the Doha Round scenarios for Mozambique. As with the Mexico study, the combination of these marketing margins with modest world price changes means that the impact on household welfare in Mozambique is quite small. Indeed, about one-third of rural households are unaffected by the Doha scenario. The largest rural losses are about one percent of income, with some households experiencing modest gains. The dispersion among urban households is larger, due to the presence of smaller marketing margins. Overall the impact of multilateral trade reform on Mozambique is adverse, as preferences are eroded and prices of imports rise.

# **4. The Disaggregated Impact on Households**

Moving beyond the question of price transmission, we come to the issue of household level impacts of – and household responses to – the price changes ensuing from trade reforms. The simplest way of exploring this link is to focus on a single commodity. This is the approach taken by Jorge Balat and Guido Porto (2005) on the impact of trade reform on cotton producers in Zambia. They note that the critical factor in 15
this case is the share of household income generated by cotton production. To a firstorder approximation, the real income impact of a change in the price of cotton may be obtained by multiplying this income share by the percentage change in cotton price. This leads them to focus on the evolution of cotton income shares amongst the poor in Zambia. Since cotton is grown in significant quantities only in three provinces, this is where they focus attention.

One of the striking things about world cotton markets in the late 1990s was the collapse in world prices. Between 1996 and 1998, cotton prices in Zambia fell by 20 percent. Therefore, it is surprising that cotton’s share in income among the poor rose sharply in the Eastern and Southern Provinces over this same period. Indeed, amongst the poorest households in the Eastern Province, the increase was nearly five-fold – even as the income share fell for wealthier households. While there are many factors that may bear on this change, the authors argue that the most likely reason was the reform of the cotton marketing board system and the implementation of an out-grower scheme which proved effective in getting seed and fertilizer into the hands of credit-constrained, small scale producers. This increase in the cotton share boosts the potential benefits from multilateral agricultural reforms, since one of the main consequences of such reform would be to raise cotton prices.

Despite the increase in cotton income shares over this period, the income impact on the poor of higher cotton prices – the authors assume a 12% price rise, based on several independent studies of world cotton markets – is still relatively modest (of the order of one percent of real income, on average) because the average income share is about 8%. This brings them to a discussion of complementary domestic reforms. In 16
particular, they cite evidence from other research they have conducted in Zambia which finds that access to extension services can boost productivity by more than eight percent, resulting in an aggregate gain of more than nine percent, when combined with higher cotton prices.

But the largest poverty reduction benefits appear to arise when subsistence households switch to cotton production in the wake of increased demand for exports. Here, a careful matching of subsistence and cotton-producing households shows that, all else constant, subsistence producers could boost their incomes by nearly 20 percent if they switched to cotton production. Such a switch would be greatly facilitated by continued improvement of the out-grower schemes and strong demand for cotton exports. When combined with improved extension services and higher cotton prices, the switch from subsistence production to cotton could boost incomes of some of the poorest households in Zambia by nearly one-third. In sum, Balat and Porto conclude that trade reform alone is not sufficient to raise a large number of poor out of poverty in Zambia, but that when the market opportunities presented by trade reforms are combined with complementary domestic reforms, significant headway in the fight against poverty is possible.

Of course, global trade reforms do not simply alter one single commodity price: rather they potentially affect _all_ prices in the economy – including the prices of nontradeable commodities and services as well as wages and returns to land and capital. So we turn next to a study that seeks to account for the full range of price impacts at a highly disaggregated level. The unusual thing about Joaquim Ferriera Filho and Mark Horridge’s (2005) paper is the very large number of individuals considered in their 17
analysis – 264,000 adults who are members of 112,000 households spread across the 27 regions of Brazil. The authors argue that the regional dimension of their study is critical, given the tremendous disparities in income and poverty incidence across regions. The proportion of poor households ranges from about 14% in parts of the Southeast, to nearly 60% in the North (Amapa). When combined with large variations in industrial composition across regions, there is a recipe for great differences in poverty impacts due to trade reform.

Ferriera Filho and Horridge find that the Doha scenarios benefit agriculture at the expense of industry. This is no surprise, as virtually all previous studies of global agricultural trade reform have concluded that Brazil would be a substantial beneficiary from such a development. However, the real question is: Which households within Brazil will benefit? Many believe that all of the benefits will go to large farmers, thereby worsening the income distribution in Brazil. The research reported in this paper argues that, when one takes account of the additional employment generated by the expansion of agriculture and related industries in many of the poorer states of Brazil, the largest gainers are actually the households most heavily reliant on low-skill labor. As a consequence, the income distribution in Brazil _improves_ under the Doha scenario. This is a very important finding. It is a point that has been previously emphasized in more highly aggregate research on trade and poverty reported in Harrison et al. (2003).

As a percentage of initial poverty, the estimated national decline in this paper is modest (less than one percent), but it still amounts to a large number of persons. Under the Doha scenarios, poverty falls by about 236,000, and it declines by about twice that amount in the case of the Full-Lib scenario. The declines in poverty are fueled by the 18
growth in agricultural activity – Brazilian farm and food exports expand strongly in the wake of trade reform – and the subsequent increase in demand for the lowest skill workers, 41% of whom still work in the farm sector.

Of course these wage gains hinge on the existence of an operational labor market. Such a market may not exist in some cases and the potential consequences of factor market failure are explored in considerable depth in Marijke Kuiper and Frank van Tongeren (2005). These authors approach this problem by employing a village-level model of a community in Jiangxi Province in China. They capture the heterogeneity of household types by grouping them according to their factor endowments. In particular, they distinguish whether or not households have access to draught power and whether or not they have family members involved in temporary migration outside the province. After a detailed analysis of circumstances in this village, they conclude that the markets for labor, land and capital are imperfect, thereby preventing households from simply taking wages and rental payments as given when making decisions about consumption and production. This “non-separability” complicates the household’s decision process and can result in some striking results in the wake of trade reforms as the authors show.

In the case of Doha reforms, the real income gains for the village are quite modest – about 1.2% of income – and relatively evenly spread across the different household groups. However, in the case of full liberalization, the aggregate gains are four times as large, and also much more unevenly spread across households, with the gains to households with draught power nearly twice as large as those for the other household groups. This reflects the intensification of production in agriculture engendered by higher prices for rice and other farm products.

19
# **5. Labor Markets**

The main resource with which the poor are endowed is their own labor. Whether they are self-employed farmers, providers of services, or wage earners, their income is closely tied to conditions in the labor market. This point surfaces clearly in the Brazil and China studies discussed above, both of which emphasize the importance of labor markets as a mechanism for transmitting favorable developments in the world marketplace, as well as elsewhere in the domestic economy, to impoverished households. We now turn to studies which focus primarily on the labor markets in Brazil and China, as well as one focusing on a third country – Indonesia. The first of these is Maurizio Bussolo, Johan Lay and Dominique van der Mensbrugghe (2005) on Brazil. Their focus is specifically on the link between the farm and non-farm labor forces. They model the decision to move out of agriculture based on an econometric model that predicts the likelihood of a given individual changing sectors, based on the historical evidence in Brazil. The other important feature of this paper is that they set their analysis in the context of a 2001-2015 baseline for the Brazilian economy. This permits us to view the impacts of trade reform in the context of ongoing changes in the economy, labor markets and poverty.

In their baseline projection, Bussolo, Lay and van der Mensbrugghe find that the poverty headcount falls by almost 14%. The majority of this decline is due to poverty reduction in agriculture -- a sector which grows considerably faster than the non-farm economy under their business as usual (BaU) forecast. The majority of this poverty reduction is due to factor price changes (e.g., higher wages), but a significant portion is due to the exit of labor from the relatively low wage agricultural sector to higher wage, 20
non-farm jobs. This intersectoral movement is particularly important to the poorest farm households.

Having established this baseline scenario, the authors analyze the implications of alternative trade reforms for poverty – and in particular for the different labor force groups: the “movers” who move from agriculture to non-agriculture over the course of the baseline, the “stayers” who remain in agriculture, and the “stayers” in nonagriculture. The largest percentage point reduction in poverty over the baseline is for the “movers” who experience a 22.4 percentage point reduction in their headcount (down from 53.4% to 31%). This is the poorest of the three groups, and it is also the group that experiences the greatest incremental poverty reduction, above and beyond the baseline, as a result of the Doha trade reforms. Overall, the authors find quite modest poverty gains from the Doha scenarios (just 3% of the baseline change over the 2001-2015 period). Full liberalization generates estimates of national poverty reduction that are three times as large as the Doha reductions – but still modest in the context of projected baseline changes. This underscores the fact that trade reforms taken alone are a relatively small piece of the overall poverty reduction puzzle.

Fan Zhai and Thomas Hertel (2005) take a deeper look at the Doha reforms through the lens of a labor-focused CGE model of China – and the scope for enhancing these outcomes through complementary education reforms. Like the Bussolo et al. paper, this paper emphasizes the farm/non-farm labor market linkage which the authors argue is partly a function of educational attainment and therefore susceptible to change through educational policy. They also emphasize the link between rural and urban labor markets in China – through the temporary migration of workers. (Permanent migration is still 21
restricted in that country.) In their analysis of multilateral trade reforms, the authors find that poverty falls across all of their household categories: by 1.3% in the case of Doha and 2.7% in the case of full liberalization. Inequality also declines slightly under these scenarios.

Zhai and Hertel cite econometric evidence that suggests that an additional year of education boosts an individual’s chances of obtaining an off-farm job in China by 14%. Educational attainment is also important for workers seeking to meet the needs of an increasingly integrated global marketplace. Yet education expenditures per pupil in the rural areas lag significantly behind their urban counterparts in China. So the authors explore the implications of accompanying trade reform with additional educational investments in rural areas to enhance rural labor mobility, productivity and income. In particular, they boost expenditures per pupil enrolled in mandatory education by 16% to reach the comparable urban level. This increment is assumed to be financed in part by public funds, raised through additional taxation, and in part through increased private contributions taken out of rural households’ disposable income. This combination of educational and trade reforms has a much stronger impact on poverty alleviation, with the number of poor (living below $2/day) falling by 13.4%. This scenario also has a favorable impact on rural-urban income inequality.

The final paper focusing on labor markets that we discuss is a case study of Indonesia by Anne-Sophie Robilliard and Sherman Robinson (2005). Instead of focusing on the farm/non-farm or rural/urban movement of labor, these authors draw a sharp distinction between the formal and informal labor markets. The formal sector offers high wages, but few opportunities for employment. The informal sector, by contrast, has a 22
flexible wage which is assumed to clear the market. Robilliard and Robinson explicitly model each individual’s decision to participate in one or the other of these labor markets. In this way, they are able to predict which types of individuals will lose their job when formal sector employment contracts, and which will be hired when employment expands. These changes in employment represent an important determinant of the welfare impacts on households of any change in a country’s pattern of trade, production and employment.

Robilliard and Robinson explore the poverty impacts of multilateral trade reform under three alternative labor market closures: fixed aggregate employment and flexible wages, fixed, sector-specific labor (no change in employment by sector), and fixed real wages and variable aggregate employment (i.e. changes in unemployment are permitted). They focus on the full liberalization scenario for this sensitivity analysis and find that the largest reduction in poverty comes from the fixed employment scenario – about 1.4 million people are lifted out of poverty. The proportional reduction is slightly higher in the rural areas and more favorable to the poorest of the poor as well, so that the national Gini index falls in this closure. When labor is not permitted to move across sectors, the poverty reduction is much smaller – only 900 thousand: because the economy is not permitted to fully adjust to the new world prices, efficiency gains are blunted and the national rise in per capita income is muted.

The third case, in which wages are fixed and the unemployment rate is permitted to fall in the wake of increasing labor demand, presents a particularly interesting contrast in this paper. With increasing aggregate employment, national per capita income rises more than in the first case with fixed employment and flexible wages. The authors point out that the poverty outcome depends critically on who gets the new jobs. If the new jobs 23
go to individuals from non-poor households, i.e. families with other wage earners or other sources of income, the unemployment specification could worsen income inequality since the pool of unemployed workers prevents unskilled wages from rising and, without the benefit of higher wages, the poverty reduction would muted. In order to quantify this outcome, the authors have estimated the likelihood that each type of unemployed individual will obtain one of the newly available jobs. There is a considerable uncertainty associated with these estimates, and the authors reflect this by reporting their results in terms of the mean and standard deviation of a monte carlo simulation for each closure/scenario. While the mean poverty reduction under the unemployment closure is larger than that under the standard labor market specification, the standard deviations suggest that the two are not significantly different in a statistical sense.

# **6. Interactions with Tax Policies**

An important theme in many of the papers in our program is the potential for interactions between the Doha scenarios and domestic policies to alter the poverty outcomes obtained from multilateral trade reform. Does multilateral trade liberalization lessen the distortions introduced by domestic commodity and factor market policies, or does it exacerbate them? To what extent can complementary reforms of domestic policies enhance the degree of poverty reduction? When trade liberalization results in reduced tax revenues, how will this shortfall be made up? Two papers focus squarely on the question of tax replacement.<sup>4</sup>

> 4 Of course, some assumption about tax replacement is required in every analysis of trade policy reforms.

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Christian Arnault Emini, John Cockburn and Bernard Decaluwe (2005) focus on the case of Cameroon. They examine the poverty impacts of the central Doha scenario paying particular attention to the structure of the domestic tax system and the different options available for replacement of the lost tariff revenue. They view the Value-Added Tax (VAT) as the most likely tax replacement tool in Cameroon. This tax has a very heterogeneous impact on sectors, with effective rates ranging from zero in the case of agriculture, to 13% in the case of petroleum refining. When they combine this tax replacement tool with the Doha scenario, they find that poverty falls slightly, by about 22,000 people, in Cameroon, as does inequality. Of course, with relatively small tariff cuts under the Doha scenario, tax replacement is not all that central in this scenario.

In the case of full liberalization, tax replacement becomes much more important and the authors consider three alternative tax scenarios in conjunction with these tariff cuts. In every case, poverty rises, but the size of the poverty increase, as well as its causes, vary with the choice of replacement tax. When they utilize a non-distorting production tax, 106,000 people are estimated to be lifted out of poverty, but 193,000 formerly non-poor fall into poverty, resulting in a net poverty increase of 87,000 people. This occurs despite an increase in aggregate welfare in Cameroon, so it is clearly a consequence of the pattern of imports and exports in this country. When trade reform is coupled with an increase in consumption taxes, the poverty rise is much larger – nearly half a million people. This impact is lessened somewhat (a 300,000 increase) by the use of the value-added tax to replace the forgone tariff revenue. Clearly in the case of

> The “standard assumption” used is one of replacement of lost tariff revenue with an equi-proportional (distribution neutral) income tax. While not a realistic assumption in most cases, it facilitates the comparability of results across regions. In those cases where country authors in our program emphasized the treatment of the domestic tax system, they were encouraged to explore the impacts of replacing the lost tariff revenue with the most likely instrument (usually the value-added tax).

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Cameroon, the choice of tax instrument used to replace the lost tariff revenue can be as important as the type of trade liberalization (full liberalization vs. Doha reforms only).

A second paper analyzing tax replacement is Caesar Cororaton, John Cockburn and Erwin Corong (2005) on the Philippines. This is an interesting case since the agriculture sector has evolved from net exporter to net importer over the past three decades. As a relatively recent net food importer there is widespread concern in the Philippines that trade reforms will jeopardize food security. However, in their analysis of the Doha scenarios, the authors find that the national poverty headcount is barely affected. There is a small rise in poverty among the self-employed households – particularly those in rural areas, while poverty amongst salaried urban workers falls. Unlike many of the focus economies in this volume, the Doha reforms are not favorable to Philippine agriculture, and this effect is more pronounced under full liberalization. Because of the relatively high protection for Philippine agriculture presently, full liberalization results in a contraction of the agricultural sector and an increase in rural poverty. This is offset by a reduction in poverty amongst the urban population, where wages rise. As a consequence, there is a small decline in the national poverty headcount. However, when the authors switch from the VAT to a uniform income tax for purposes of tariff replacement, poverty rises under the full liberalization case. Once again, the pattern of exemptions in the indirect tax system favors the poor, and its use for purposes of tax replacement is a critical piece of the poverty puzzle.

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# **7. Cross-Country Comparisons**

With their differences in factor market closures, elasticities of substitution, methodologies for grouping households and modeling labor markets, etc., the country case studies described up to this point have been non-comparable. This makes it difficult to generalize on the basis of cross-country comparisons. Therefore we included two cross-country studies in the program: first, Maros Ivanic (2005) which provides a crosscountry comparison for 15 countries – each of which is treated in a symmetric manner. While this approach is somewhat stylized, and therefore less definitive for any given country, each of the focus country data bases has been built up from the same types of individual household surveys as the single country case studies. Another virtue of this paper is that is offers a fully integrated, global/national/micro modeling approach. In particular, Ivanic has augmented the GTAP global CGE model with reconciled data on 140 disaggregated household groups for each of the 15 focus countries. His grouping is based on income specialization, e.g., agriculture-specialized households rely almost entirely on agricultural self-employment for their income, and similarly for a wagespecialized stratum, etc. Because his is a global framework, he can simulate all of the trade reform scenarios directly in his model, which also facilitates further decomposition of the elements of trade reform and their poverty impacts.

Ivanic’s findings with respect to the poverty impacts of the Doha Agenda are particularly interesting. Specifically, he finds that the Doha trade reform scenarios are not as poverty-friendly as the global liberalization scenario. Now, if Doha represented the same mix of policy reforms as full liberalization, we would expect both simulations to have the same pattern of poverty reduction but with larger cuts under Full-Lib because of 27
its deeper cuts in protection (e.g., 100% vs. 33%). However, this is not the case, and, in a decomposition analysis, Ivanic shows why.

The Doha Agenda as outlined by Anderson and Martin (2005) has a variety of different elements, and these have conflicting impacts on poverty. The removal of export subsidies in the EU and the USA tends to raise poverty in most of the developing countries in Ivanic’s sample – even while reducing poverty amongst the agricultural households in these poorer countries. This is hardly surprising in light of earlier studies highlighting the vulnerability of low-income, net food importing countries to higher world prices for these products (e.g., Valdes and McCalla, 2004).<sup>5</sup> Since these export subsidies are fully removed under the Doha scenario, this impact is fully realized under that partial reform. On the other hand, Ivanic finds that cuts in developing country tariffs as a group have a very favorable impact on national poverty in the focus countries.<sup>6</sup> Yet there is very little reform of developing country tariffs under Doha – firstly due to limited reciprocity (part of Special and Differential Treatment), and secondly due to the extensive binding overhang in developing countries. Thus, while developing country tariff cuts are among the most poverty-friendly elements of global trade reform, very little of the beneficial impact of these reforms is felt under the Doha scenario. When combined, these facts explain why Doha is less poverty-friendly than the comprehensive reform scenario. It accentuates those aspects of reform that adversely affect poverty (export subsidies), while largely omitting those aspects that benefit the poor.

> 5 Dimaranan, Hertel and Keeney (2004) demonstrate that many developing countries have become much more heavily dependent on imports of subsidized crops from OECD countries over the past 40 years. Removing these subsidies will obviously have an adverse effect in the near term.

> 6 In Ivanic’s analysis most of these gains come from improved market access to other developing countries. This is due to the relatively high optimal tariff in the underlying GTAP model, which makes unilateral reform relatively unattractive (see Hertel and Ivanic, 2005). An implication of this is that to reap the benefits developing countries must liberalize together – i.e. that the multilateral aspect of reform is important.

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This suggests that deeper cuts in developing country tariffs under the Doha scenario might have a beneficial impact on the poverty outcome. This is explored under the alternative scenario, Doha-All, in which developing countries fully reciprocate the developed country reductions in tariff bindings. Ivanic shows that Doha-All does indeed have a more favorable poverty outcome than the base Doha scenario.

An additional finding from Ivanic’s cross-section analysis pertains to the common assumption that “a rising tide lifts all boats”, i.e., that poverty rises and falls in concert with changes in national per capita income. Ivanic shows that this is not always the case in the near term. The reason is that trade reform generates uneven gains in the economy. One sector gains and another loses, so it matters greatly where the poverty is concentrated. If most of the poor reside in agriculture, and agriculture is hurt by trade reform, poverty may rise, even if real national income rises. This is the case in Malawi, where 40% of the population is specialized in agricultural self-employment.

# **8. Effects on Productivity and Economic Growth**

Sustained reductions in poverty require economic growth, which leads naturally to the question of how a prospective Doha Development Agenda might affect the growth rates of countries currently experiencing the highest levels of poverty. This is a challenging area of research – worthy of an entire volume in its own right – but the research program contains two country case studies and a global analysis oriented towards this theme.

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Nabil Annabi, Bazlul Khandker, Selim Raiham, John Cockburn and Bernard Decaluwe (2005) writing on Bangladesh focus on the growth question by emphasizing the impact of trade reform on capital accumulation. It begins with a short run analysis in which they find that Bangladesh experiences an aggregate loss, as well as a small rise in poverty under the Doha scenario. Previous authors have attributed these adverse consequences to two factors. First, Bangladesh is a net agricultural importer and suffers from higher world prices agricultural products. Second, as a Least Developed Country (LDC), Bangladesh currently enjoys tariff free access into many of the rich country markets. When tariffs in these markets fall, she is expected to suffer from “preference erosion”, i.e. the value of these tariff preferences diminishes. Our analysis suggests that the first explanation is the relevant one – with the main losses associated with imports of cotton, wheat and oilseeds. We do not find evidence of preference erosion adversely affecting the terms of trade for Bangladesh. This is because the apparel exports displaced by erosion from the EU are absorbed in the North American market, where, _de facto_ , most apparel exports from Bangladesh do not enjoy preferential market access and so Bangladesh benefits from the tariff cuts. The terms of trade losses facing Bangladesh under Doha are magnified under full liberalization. In addition to the above, to pay for additional imports, Bangladesh must expand the volume of her textile and apparel exports – which account for nearly eighty percent of export revenues. This tends to depress their prices.

However, these short run losses are transitory and Annabi et al. estimate that after 2 – 3 years, the economy will be better off under Full-Lib than under the business as usual scenario. The reason is that the cost of investment goods will fall and increased 30
investment will flow to the more competitive sectors, thereby stimulating additional growth. They estimate that in the long run (15 years) GDP will be 1.44% higher and poverty 6.1% lower under the Full-Lib scenario. A closer look at these results reveals that most of the stimulus for the increased investment and economic growth comes from the reduction in Bangladesh’s own tariffs, which would be missing under the Doha scenario.

The authors also briefly explore an issue that has received quite a bit of discussion recently in the context of the WTO: remittances from overseas workers. They formally explore the implications of a fifty percent increase in the flow of remittances to Bangladesh – and specifically to those households currently receiving these transfers. In return, the domestic labor supply is reduced. This development has a favorable impact on poverty, reducing it by 0.8% in the short run and 4.0% in the long run. To the extent that rich countries are concerned about the impact on Bangladesh of higher food prices and preference erosion, a policy which permitted increased temporary migration appears to be a good way to offset some of these negative effects, as the benefits of increased remittances dominate the short run costs of trade liberalization.

Thomas Rutherford, David Tarr and Oleksandr Shepotylo (2005) explore one of the key trade/growth linkages in the case of Russia. They focus particularly on the potential for international trade and foreign direct investment in the services sector to bring new varieties of goods and new technologies to Russia, thereby enhancing her productivity, generating economic growth, and lifting households out of poverty. The role of services sector reforms – an important aspect of future WTO agreements – is often neglected in analyses of trade and poverty. Yet, as Mattoo et al. (2001) demonstrate, such reforms – particularly in telecommunications and financial services, can boost long run 31
growth rates. The paper on Russia begins by analyzing the Doha scenario explored by other authors. The impact of this scenario is mixed, but most of the households experience a small welfare loss. The Full-Lib scenario shifts the distribution of welfare impacts in the positive direction, so that most Russian households now gain and poverty falls, but again the changes are quite modest.

The authors then turn to domestic reforms in the services sectors – a part of the economy that the Doha Agenda is not expected to affect to any great degree, but an area which is currently receiving a great deal of attention in the context of Russia’s WTO accession negotiations. The authors show that the liberalization of barriers to Foreign Direct Investment (FDI) greatly enhances the potential welfare gains. The main vehicle for this enhancement is the provision of new varieties of services, which improve productivity, not only in the services sector, but also in services-using sectors as well. Indeed, the added productivity boost from the elimination of services FDI barriers alone is sufficient to generate per capita income increase of 5.3%, ensuring that virtually all Russian households benefit from the reform. There are two lessons to be drawn from this work. First, productivity growth is essential for generating widespread gains from trade reforms, and second, one way of obtaining such growth is through ambitious services sector reforms, such as those that have been a part of recent WTO accession negotiations – most notably in China, but also now in Russia.<sup>7</sup> Finally, the program includes an integrated, global analysis of the potential for multilateral trade reforms to reduce poverty in the long run (2015). Kym Anderson, Will Martin and Dominique van der Mensbrugghe (2005) utilize the latest version of the

> 7 Similarly dominant welfare effects from services reforms have been found in the case of China’s WTO accession agreement (Walmsley et al., 2005).

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World Bank’s Linkage model, along with the GTAP data set to project the growth path of the global economy from 2001 to 2015. They find that trade reforms have a modest impact on capital accumulation and thereby boost the projected global gains from multilateral trade reform by about one-quarter. However, they devote most of their attention to the potential impacts of increased trade on productivity growth. (It should be noted, however, that the authors focus entirely on productivity growth associated with increased manufactures exports – not services trade or investment as with the Russia study).

There is now a rapidly growing literature on the impacts of trade and trade policy reforms on productivity and Anderson, Martin and van der Mensbrugghe draw on this in their paper. When they incorporate the additional impact of openness on labor productivity, they find a substantial boost to the global gains (40% larger gains in 2015) with a disproportionate share accruing to the South and East Asia developing economies.

The poverty impacts of these alternative scenarios are elicited by first estimating the income gains to the poorest households and then applying to this an estimated elasticity of poverty reduction with respect to income growth at the poverty line. Instead of using real per capita income for the region as a whole, they use the unskilled wage rate, deflated by an index of food and clothing prices, reflecting the dual facts that the main endowment of the poor is their own labor, and they spend the bulk of their income on non-durable goods. Another critical assumption is that the poor do not pay taxes, so that any increase in tax rates required to offset forgone tariff revenues does not affect them.

Applying these estimates of earnings at the poverty line to the poverty elasticity of income in each region – which varies depending on the regional distribution of income 33
– the authors predict the extent of poverty reduction in developing countries. Of course, this depends on the poverty line. It also depends on the baseline poverty projections, which decline considerably between 2001 and 20015. For $1/day poverty, the estimated reduction in 2015, in the absence of additional productivity gains, is 2.5 million for Doha and 31.9 million for Full-Lib. When applied to current (2001) poverty levels, the authors’ calculations result in poverty reductions of 9.7 million and 80.5 million under Doha and Full-Lib, respectively. The 2015 poverty reductions are increased to 4.3 million and 43.5 million, for Doha and Full-Lib respectively, when productivity gains are factored in. For $2/day poverty, the reduction in number of poor is larger, but the percentage reduction is smaller (see Table 1).<sup>8</sup> Based on the Doha/Full-Lib comparison, it is clear that the (rather ambitious) Doha scenarios capture only a relatively small portion of the total poverty reduction possible under trade reforms. When the authors consider the Doha-All scenario, they find that implementing deeper cuts in the developing countries enhances the poverty outcome, nearly doubling the poverty reduction obtained under the central Doha scenario. This finding reinforces Ivanic’s (2005) conclusions with respect to the beneficial poverty impacts of developing country tariff cuts under the Doha Development Agenda. It is also hardly surprising in light of the increasing importance of South-South trade and the relatively high level of developing country tariffs as reported by Anderson and Martin (2005).

> 8 These estimates of poverty reduction are considerably smaller than earlier predictions using the World Bank’s Linkage model. The difference is due to the fact that these estimates are based on the most recent (version 6) GTAP data base, which is further updated to account for EU enlargement as well as the WTO accession of China and others. These recent trade reforms have reduced the overall level of protection worldwide – thereby lessening the gains from reform. In addition, the version 6 data base has a complete treatment of preferential tariffs – including the EU’s 2001 Everything But Arms initiative, which means that gains to the least developed countries from trade reform are considerably reduced.

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Another important finding from the Anderson, Martin and van der Mensbrugghe paper relates to sensitive agricultural products, as well as special products in developing countries. Industrial countries have proposed that certain sensitive products be exempt from steep tariff reductions, instead being liberalized through a combination of quota expansion and tariff reduction. Anderson and Martin (2005) suggest that a cut in bound tariffs might be most effective, and they consider the case in which these commodities, limited to 2% of industrial country tariff lines in agriculture, face a modest 15% cut in bound tariffs. In the case of developing countries, an additional category of exemptions is provided for in the Framework Agreement. These “special products”, identified “based on criteria of food security, livelihood security and rural development needs,” will be eligible for more flexible treatment as well (WTO, 2004). Allowing for this additional category, the scenario outlined by Anderson and Martin permits developing countries to exempt 4% of agricultural tariff lines from the tiered cuts, facing instead just a 15% cut in bound tariffs.

Of course it goes without saying that both special and sensitive products invariably have the highest tariffs, so that exempting them can make a big difference in the results. Indeed, the authors find that merely introducing these modest exemptions for a maximum of 2% of the industrial tariff lines in agriculture (4% for developing countries) virtually eliminates the poverty impacts of a Doha agreement. Therefore, in order to have a significant poverty impact, the Doha Agenda must not only have ambitious numerical targets, it must also seek to limit – indeed eliminate – the use of sensitive and special product exemptions.<sup>9</sup>

> 9 We are not arguing here that individual developing countries could not improve their poverty outcomes

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# **9. Summary and Conclusions**

Assessing the impact of multilateral trade liberalization on poverty is a challenging assignment. As Winters (2002, p. 43) notes: “Tracing the links between trade and poverty is going to be a detailed and frustrating task, for much of what one wishes to know is just unknown. It will also become obvious that most of the links are very case specific.” The research reported here is an attempt to make known a few more of these “unknown” linkages. As such, the approach has been heterogeneous and opportunistic, calling on experts in this field to undertake in-depth studies in countries for which appropriate data and analytical infrastructure are available. All of this research capacity has been directed towards the analysis of the trade policy question which is central in many policy makers’ minds today – namely: What are the likely poverty impacts of a successful Doha Development Agenda? And what elements could be added to enhance this outcome?

As noted previously, the approach taken by the project ensures consistency of methods in the global analysis of the multilateral trade reform scenarios – and also in the methodology for incorporating these results into the national analyses. However, at the country level, different authors have had the liberty to take a variety of approaches depending both on the particular circumstances facing their countries and their own analytical interests. This is why we have two studies of the Brazilian economy – one of which focuses on near term impacts across heterogeneous individuals, households and

> by exempting a few special products from liberalization. But given the multitude of products and countries we cannot identify such cases here. Besides, we find it implausible that developing countries could leave the exemptions door open in any significant fashion without industrialized countries also squeezing their sensitive products through the same opening.

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regions in Brazil, and one of which focuses on longer terms impacts – particularly in light of the barriers to inter-sectoral labor mobility. In the case of China, we have one study which focuses on market failure at the village level, and another which focuses on labor mobility at the national level. Similarly there are differences in methodology taken across countries, with a mix of partial and general equilibrium approaches, and static and dynamic frameworks. The base years differ across studies, and even the poverty lines chosen are not uniform across all studies. Their findings, therefore, are not strictly comparable. Finally, since the choice of countries for the program was made on the basis of pre-existing work that laid a foundation for the current research, this is not a random sample of developing countries. With these qualifications in mind, let us take an overview of the findings.

Table 1 summarizes the poverty results from each of the national studies (subnational studies are not reported here) for both the Doha and Full-Lib scenarios, distinguished by length of run for the analysis. The long term studies factor in the impact of trade policy on investment and capital accumulation – and in the case of the global analysis, productivity as well, whereas the short term studies do not. The national poverty changes are reported in two different ways – first as the change in number of persons in poverty, and second as the percentage change in the poverty headcount. Thus a negative number in Table 1 means that the number of poor has fallen as a result of multilateral trade reform, while a positive number indicates that the number of poor has risen.

Table 1 suggests several tentative conclusions. First, the near term analyses are mixed in their outcomes, with poverty rising in some cases and falling in others. We view this diversity as correct and a strength of our country-based approach. Even setting aside 37
the methodological differences between studies, the case-specificity alluded to above leads us to expect differences between countries’ interests in the DDA, and in the various case studies the authors explain exactly why this is so.

The largest poverty reductions in Table 1, both in absolute and relative terms, are in countries with agricultural export potential to the markets that liberalize most (i.e., East Asia and Europe). The strong poverty reduction in Brazil is driven by increased agricultural production, which tends to be concentrated in regions with relatively higher poverty incidence. In China, the poverty reduction is fueled by increased agricultural exports to the highly protected agricultural markets of East Asia. On the other hand, the poverty increases tend to be in countries which are net importers of agricultural products (e.g., Bangladesh), and which may presently benefit from preferential market access (e.g., Mozambique). Thus the strongest difference between countries concerns their exposure to the shocks generated by the DDA. Even holding this constant, however, poverty impacts can vary with, for example, the degree of transmission of world prices to rural households, the barriers to the mobility of workers between sectors of the economy, and the incidence of national tax instruments used to replace lost tariff revenue. Taken as a whole, the number of countries where poverty declines under the Doha scenario is about the same as the number of countries where it falls, although looking at the absolute number of poor, we see that poverty declines in several of the most populous countries (Brazil, China and Indonesia) and therefore declines overall in this non-random sample of countries.

Turning to the long run results, we see that all of the studies that consider the impact of trade on capital accumulation and/or productivity predict a reduction in poverty 38
(with the exception of Doha-Bangladesh, where there is no long run measurable impact). Trade stimulates investment, investment stimulates growth and growth reduces poverty. When productivity impacts are also considered (bottom row), this effect is even stronger. This short run/long run distinction is particularly striking in the case of the Full-Lib scenarios for Bangladesh, where the short run impacts of trade reform translate into a rise in headcount poverty, while the long run impacts of trade reform suggest a substantial decline.

In addition to the quantitative summary reported in Table 1, the research program has generated a number of additional insights. First, the liberalization targets under the DDA have to be ambitious if the round is to have a measurable impact on world markets and hence poverty. Second, assuming an ambitious DDA, we have seen that the nearterm poverty impacts are likely to be mixed.

The analysis suggests, however, that countries can enhance the impact on poverty, by pursuing complementary domestic reforms to enable households to take advantage of market opportunities created by the DDA.<sup>10</sup> These include improved infrastructure and the reform of domestic marketing institutions to improve price transmission to rural areas, rural education reform to enhance labor mobility between the farm and non-farm sectors, and extension outreach to permit farmers to take advantage of new export opportunities opened up by the DDA.

Of course, sustained poverty reduction depends on stimulating economic growth. Here, the impact of the DDA on productivity is critical. Empirical evidence suggests that increased merchandise trade will likely bring with it productivity gains through

> 10 The volume edited by Harrison reaches a similar conclusion, based on a set of _ex post_ analyses of trade reform and poverty.

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disciplinary effects of import competition on domestic firms as well as, possibly, learning-by-doing on the export side. To fully realize potential productivity gains, however, trade reforms need to be far reaching and should include reducing barriers to services trade and investment in addition to merchandise tariffs which lie mainly or wholly outside the DDA. Thus even if the DDA is very successful, a major agenda of unilateral reform and further rounds of multilateral talks remains. Only through such comprehensive reforms can long term growth and poverty reduction be ensured.

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