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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

Modeling the global trade and environmental impacts of biofuel policies

There is rising skepticism about the potential positive environmental impacts of first generation biofuels. Growing biofuel crops could induce diversion of other crops dedicated to food and feed needs. The relocation of production could increase…

discussion paper

Is SAFTA trade creating or trade diverting?

The Agreement on South Asian Free Trade Area (SAFTA) entered its second phase of implementation in 2008. The creation of a free trade area is expected to affect its participants—Bangladesh, Bhutan, India, the Maldives, Nepal, Pakistan, and Sri…

discussion paper

Who should be interviewed in surveys of household income?

This study tests the null hypothesis that it is sufficient to interview only the household head to obtain accurate information on household income. The results show that using a husband's estimate of his wife's income does not produce statistically…

discussion paper

Formal-informal economy linkages and unemployment in South Africa

South Africa’s high involuntary unemployment and small informal sector are attributed to an underperforming formal sector and barriers to entry in the informal sector. This paper examines the economywide linkages between the formal and informal…

discussion paper

Trade liberalization under CAFTA

"This paper is a description and an analysis of trade liberalization under CAFTA. It shows that in the short run the impact of the agreement is likely to be small... Since the U.S. already grants tariff-free access under the CBI, trade liberalization…

discussion paper

Poverty comparisons with absolute poverty lines estimated from survey data

The objective of measuring poverty is usually to make comparisons over time or between two or more groups. Common statistical inference methods are used to determine whether an apparent difference in measured poverty is statistically significant.…

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