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This paper examines the role of changes in sectoral productivity gaps over time in accounting for growth realized by countries over the past few decades. To quantify the productivity impact of the sectoral gaps, a simple model of resource allocation is developed in which the gaps arise due to distortions in the form of asymmetrical taxes across sectors. The paper finds a limited role of changes in distortions over time in accounting for actual growth. Implied growth from changes in distortions accounts for less than 2.5 percent of actual growth for the median country. To check if the lower contribution of changes in distortions is because of unrealized gains suggested by high levels of present distortions, productivity gains are estimated when distortions across countries are reduced to the US levels. Barring a couple of cases, the gains in aggregate productivity are modest across the sample of countries.

This paper establishes that the rise in the income share of information and communication technology accounts for half of the decline in labor income share in the United States. This decline can be decomposed into a sharp decline in the income share of “routine” labor—which is relatively more prone to automation—and a milder rise in the non-routine share. Quantitatively, this decomposition suggests large effects of information and communication technology on the income distribution within labor, but only moderate effects on the distribution of income between capital and labor. A production structure calibrated to match these trends suggests modest aggregate welfare gains from automation.

This paper empirically studies the dynamics of labor market adjustment following the Brazilian trade reform of the 1990s. The paper uses variation in industry-specific tariff cuts interacted with initial regional industry mix to measure trade-induced local labor demand shocks and examines regional and individual labor market responses to those one-time shocks over two decades. Contrary to conventional wisdom, the analysis does not find that the impact of local shocks is dissipated over time through wage-equalizing migration. Instead, it finds steadily growing effects of local shocks on regional formal sector wages and employment for 20 years. This finding can be rationalized in a simple equilibrium model with two complementary factors of production, labor and industry-specific factors such as capital, that adjust slowly and imperfectly to shocks. Next, the paper documents rich margins of adjustment induced by the trade reform at the regional and individual levels. Workers initially employed in harder hit regions face continuously deteriorating formal labor market outcomes relative to workers employed in less affected regions, and this gap persists even 20 years after the beginning of trade liberalization. Negative local trade shocks induce workers to shift out of the formal tradable sector and into the formal nontradable sector. Non-employment strongly increases in harder hit regions in the medium run, but in the longer run, non-employed workers eventually find re-employment in the informal sector. Working age population does not react to these local shocks, but formal sector net migration does, consistent with the relative decline of the formal sector and growth of the informal sector in adversely affected regions.

There is increasing evidence suggesting that climate change will negatively impact agricultural production in South Asia. Decreased domestic production may make South Asian countries more dependent on imports. The extent to which South Asia will need to increase its imports as a result of climate change will presumably depend on the degree to which the latter will affect domestic output. The effects of climate change on agriculture may well differ substantially for individual South Asian countries and indeed for regions within a given country which can be approximated by food production units. This calls for an analysis of climate change effects on trade flows under alternative trade policy regimes both for agriculture and non-agricultural sectors. The specific objectives of the paper include the following: analyze the extent to which agricultural production in South Asia and elsewhere in the world may be affected by different scenarios regarding climate change; analyze the extent to which changes in domestic production in South Asia resulting from climate change will lead to increased demand for imports by South Asian countries; analyze the effects of increased import demand in South Asia and changing exportable surpluses elsewhere on world market prices of major agricultural commodities consumed in South Asia; to the extent that South Asian governments allow transmission of changes in world market prices to domestic prices, analyze the potential welfare effects of changes in the latter; analyze if, and to what extent, worldwide trade liberalization and implementation of South Asian Free Trade Area (SAFTA) will dampen the effects of climate change on domestic agricultural prices in South Asia. In this context, the report is organized as follows: chapter one gives introduction. Chapter two describes the methodology used - with particular attention to how different models and modeling techniques are linked to produce an as accurate as possible assessment based on state-of-the-art knowledge. Chapter three provides an up-to-date analysis of trade flows and policies, and production patterns for key food products in South Asia to explain the context in which climate change is taking place. Chapter four describes the climate change scenarios and illustrates their consequences for crop yields at a global level and for South Asia - and in particular shows the vulnerability of the region to these changes. Baseline design, simulations, and results are discussed in chapter five. The final chapter six provides a short summary, discusses the limitations of the analysis, and derives suggestions and guidelines for future research.

Using the most recent estimates of agricultural price distortions, this chapter studies the economic, poverty, and income inequality impacts of both global and domestic trade reform in Argentina, with a special focus on export taxes. Argentina offers an interesting case study as the only large agricultural exporter that has, at many points in its history, applied export taxes to several of its agricultural products. The chapter combines results from a global economy-wide model (World Bank's linkage model), a national computable general equilibrium (CGE) model, and micro-simulations. The results suggest that liberalization of world trade (including subsidies and import taxes, but not export taxes), both for agricultural and non-agricultural goods, reduces poverty and inequality in Argentina. However, if only agricultural goods are included, indicators for poverty and inequality do not improve and even deteriorate somewhat. This is particularly the case if export taxes are eliminated. The chapter discusses the possible reasons for those results, offers some caveats, and suggests some lines for further research.

Capitalizing on the most recent estimates of agricultural price distortions in China and in other countries, this paper assesses the economic and poverty impact of global and domestic trade reform in China. It also examines the interplay between the trade reforms and factor market reforms aimed at improving the allocation of labor within the Chinese economy. The results suggest that trade reforms in the rest of the world, land reform and hukou reform all serve to reduce poverty, while unilateral trade reforms result in a small poverty increase. Agricultural distortions are important factors in determining the distributional and poverty effects of trade reform packages, although their impacts on aggregate trade and welfare appear to be small. A comprehensive reform package which bundles the reforms in commodity and factor markets together may benefit all broad household groups in China.

Macroeconomic "fundamentals" are a most relevant variable for economic development. However, there is wide misunderstanding about which are the "sound macroeconomic fundamentals," contributing to sustained economic growth. The approach in fashion in the mainstream world and international finance institutions (IFIs) emphasizes macroeconomic balances of two pillars: low inflation and fiscal balances. The author calls it financieristic macroeconomic balances. Additionally, a frequent assertion in the conventional literature is that an open capital account contributes to impose macroeconomic discipline in emerging economies (EEs). There is strong evidence that financieristic balances have not provided a macroeconomic environment contributing to sustained growth. A third pillar must be added, linked to the productive side of the economy. The behavior of aggregate demand, at levels consistent with potential gross domestic product (GDP), is a crucial part of a third pillar for real macroeconomic balances, which has frequently failed in neoliberal experiences. Similarly crucial parts are well-aligned macro-prices, like interest and exchange rates. Frequently, these prices and aggregate demand have behaved as outliers, as reflected in economies working either well below potential GDP (the most frequent result), or overheated, with a booming aggregate demand and a large external deficit. This paper analyses alternative macroeconomic environments faced by firms and workers in the productive side of the economy (the producers of GDP), and the interrelationship between financial and real variables. The author analyzes alternative structural countercyclical fiscal policies, intermediate exchange rate policies, and capital account approaches.

Data from China's national rural and urban household surveys are used to measure and explain the welfare impacts of changes in goods and factor prices attributable to accession to the World Trade Organization (WTO). The price changes are estimated separately using a general equilibrium model to capture both direct and indirect effects of the initial tariff changes. The welfare impacts are first-order approximations based on a household model incorporating own-production activities calibrated to household-level data and imposing minimum aggregation. The results show negligible impacts on inequality and poverty in the aggregate. However, diverse impacts emerge across household types and regions, associated with heterogeneity in consumption behavior and income sources, with possible implications for compensatory policy responses.

This article is motivated by the remarkable observation that children of land-rich households are often more likely to be in work than the children of land-poor households. The vast majority of working children in developing economies are in agricultural work, predominantly on farms operated by their families. Land is the most important store of wealth in agrarian societies, and it is typically distributed very unequally. These facts challenge the common presumption that child labor emerges from the poorest households. This article suggests that this apparent paradox can be explained by failures of the markets for labor and land. Credit market failure will tend to weaken the force of this paradox. These effects are modeled and estimates obtained using survey data from rural Pakistan and Ghana. The main result is that the wealth paradox persists for girls in both countries, whereas for boys it disappears after conditioning on other covariates.

The year’s report projects an increase in the growth rate of global output, with notable contributions from Sub-Saharan Africa, the developing countries of Europe and Central Asian, and East Asian countries. This report places special emphasis on the role of the “Big 5” developing and transition economies – China, India, Indonesia, Brazil, and Russia – in the future of the global economy. In addition to assessing the current state of the world economy, this report discusses the expansion of global production and the costs of making the transition to a more open economy