Climate change presents a profound challenge to food security and development. Negative impacts from climate change are likely to be greatest in regions that are currently food insecure and may even be significant in those regions that have made large gains in reducing food insecurity over the past half-century. Adaptation in the agricultural sector is being given a high priority within this effort because of the inherent sensitivity of food production to climate and the strong inter-linkages that exist between climate, agriculture, and economic growth and development.

The volume on agricultural price distortions, inequality and poverty begins with a global study that uses the World Bank's linkage model to examine the economic impacts in various countries, regions and the world as a whole of agricultural and trade policies as of 2004. It does so by shocking that model with the removal of all agricultural price-distorting domestic and border policies with, and without, the removal of trade policies affecting all other goods.

Reforms in recent decades have sharply reduced the distortions affecting agriculture in developing countries, particularly by cuts to agricultural export taxes and by some reductions in government assistance to agriculture in high-income countries, but international trade in farm products continues to be far more distorted than trade in nonfarm goods. This paper summarizes a series of empirical studies that focus on the effects of the remaining distortions to world merchandise trade for poverty and inequality, especially in developing countries.

This paper analyzes the economic effects of agricultural price and merchandise trade policies around the world as of 2004 on global markets, net farm incomes, and national and regional economic welfare and poverty, using the global economy wide Linkage model, new estimates of agricultural price distortions for developing countries, and poverty elasticity's approach. It addresses two questions: to what extent are policies as of 2004 still reducing rewards from farming in developing countries and thereby adding to inequality across countries in farm household incomes?

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.

This paper sketches a macroeconomic scenario for China for 2010-20. Growth accounting exercise finds that, with both the working population and total factor productivity on course to decelerate, potential gross domestic product (GDP) growth is likely to moderate in the coming 10 years, despite still sizeable capital deepening. Actual GDP should grow broadly as fast as potential GDP, continuing the track record since the late 1990s.

South Africa has rapidly reduced trade barriers since the end of Apartheid, yet agricultural production and exports have remained sluggish. Also, poverty and unemployment have risen and become increasingly concentrated in rural areas. This paper examines the extent to which remaining price distortions, both domestic and foreign, are contributing to the underperformance of the agricultural sector vis-a-vis the rest of the economy. The author draws on a computable general equilibrium (CGE) and micro-simulation model of South Africa that is linked to the results of a global trade model.

A general equilibrium modeling approach is used to estimate the effects within Indonesia of unilateral and global trade liberalization, including effects on poverty incidence. It is concluded that global reform of trade policy in all commodities is a significant potential source of poverty reduction for Indonesia. The poor rural and urban have a strong interest in global trade policy reform. If Indonesia were to liberalize unilaterally, poverty incidence also will decline but the effect is small.

In this paper, the authors examine the political economy drivers of the variation in agricultural protection, both across countries and within countries over time. The paper starts by listing the key insights provided by both the theoretical and empirical literature on the political economy of trade policy formulation. The authors then set out a basic framework that allows us to put forth various testable hypotheses on the variation and evolution of agricultural protection.

This paper analyzes the political and institutional factors which are behind the dramatic changes in distortions to agricultural incentives in the transition countries in East Asia, Central Asia, and the rest of the former Soviet Union, and in Central and Eastern Europe. The paper explains why these changes have occurred and why there are large differences among transition countries in the extent and the nature of the remaining distortions.

This chapter begins with a brief summary of the long history of national distortions to agricultural markets. It then outlines the methodology used to generate annual indicators of the extent of government interventions in markets, details of which are provided in Anderson and appendix A.

Britain contrary to received wisdom was not a free trader for most of the 1800s and, despite repeal of the Corn Laws, continued to have higher tariffs than the French until the last quarter of the century. War with Louis fourteenth from 1689 led to the end of all trade between Britain and France for a quarter of a century. The creation of powerful protected interests both at home and abroad led to the imposition of prohibitively high tariffs on French imports notably on wine and spirits, when trade with France resumed in 1714.