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discussion paper

Farmers’ crop choice decisions: Trends and determinants in Nigeria and Uganda

This study investigates the determinants of farmers’ crop choice decisions, crop area diversification, and income diversification in Sub-Saharan Africa using nationally representative panel data for Nigeria and Uganda. We use both the shares of land…

discussion paper

Correlated non-classical measurement errors, ‘second best’ policy inference and the inverse size-productivity relationship in agriculture

We show analytically and empirically that non-classical measurement errors in the two key variables in a hypothesized relationship can bias the estimated relationship between them in any direction. Furthermore, if these measurement errors are…

discussion paper

Improving the equity and effectiveness of Nepal’s fertilizer subsidy program

This paper examines the fertilizer subsidy program in Nepal from two different angles, both important for policy makers in the country. First, it analyzes who is benefiting from the program, and second, it examines how farmers rank the importance of…

discussion paper

An evaluation of poverty prevalence in China: New evidence from four recent surveys

Knowledge of actual poverty prevalence is important for any society concerned with improving public welfare and reducing poverty. In this paper, we calculate and compare the poverty incidence rate in China using four nationally representative surveys:…

discussion paper

Economywide impact of maize export bans on agricultural growth and household welfare in Tanzania: A Dynamic Computable General Equilibrium Model Analysis

We study the impact of export bans in Tanzania using a computable general equilibrium model. We find that although maize is an important food crop in Tanzania, its contribution to food price inflation is rather limited, and that banning cross-border…

discussion paper

Does freer trade really lead to productivity growth?: Evidence from Africa

We use firm-level data from the World Bank’s Regional Program on Enterprise Development, covering Ghana, Kenya, Nigeria, and Tanzania for 1991–2003. Econometric results confirm well-known relationships, such as a positive association between export…

discussion paper

Gendered impacts of the 2007-08 food price crisis

This paper provides empirical evidence on the gendered impact of the 2007–08 food price crisis using panel data on 1,400 households from rural Ethiopia that were initially surveyed before the onset of the crisis, in 1994–95, 1997, and 2004, and after…

discussion paper

Trade and investment in Latin America and Asia

The last several years have seen an unprecedented cooperation in trade and investment between Asia and Latin America. Since 2003 an average of 2.2 regional trade agreements (RTAs)* per year have been signed between countries of these two regions, and…

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