Limited non-farm opportunities in the rural areas of the developing world, coupled with population growth, means agriculture will continue to play a dominant role as a source of livelihood in these areas. Thus, while rural transformation has dominated recent literature as a way of improving welfare through diversifying into non-farm sectors, improving productivity and resilience to shocks in smallholder agricultural production cannot be  ownplayed.

This study aims to investigate the association between household wealth and nutritional status among preschool children in Tanzania. The analysis is based on a nationally representative sample of 2,120 children from the Tanzania National Panel Survey (NPS), 2012/13. Household wealth was measured by wealth index constructed using the Principal Component Analysis (PCA); whereas child stunting and underweight were used to determine the nutritional status of a child.

Earlier studies that evaluated the impact of vehicular emissions on urban air quality often reached mixed conclusions, providing little guidance to city planners seeking solutions to the ever-growing problem of air pollution. In this paper, we combine the strengths of earlier studies with hourly-level data to reexamine the causal relationship between traffic congestion and ambient air quality in Beijing. We find that around 33% to 57% of ambient air pollution in Beijing can be attributed to vehicular emissions.

In this research, we investigate whether urban rail transit expansion improves air quality. We also compare the magnitudes of the effects across cities and explain the variation. The results suggest that opening subways alleviated air pollution, especially during non-rush hours in the daytime. We find that the effects are smaller in the cities with higher income and more subway lines, while the effects are larger in the cities with higher population density. Furthermore, the effect of the first subway line opening is stronger, compared to expansion of an existing subway system.

A key strategy for adapting to changing water availability and rapid urbanization is a move towards full cost recovery tariffs for water and sanitation services. Because these services are substantially underpriced in most places, this strategy implies that careful attention must be directed at programs to help the poor manage water affordability. In this paper, we systematize these “customer assistance programs” (CAPs) by defining their major elements and develop a typology that highlights the connection between CAPs and water scarcity.