This article investigates the impact of piped water supply and sanitation on health outcomes in urban Yemen using a combination of quasi-experimental methods and results from microbiological water tests. Variations in project roll-out allow separate identification of water and sanitation...

Data from a farm survey and choice experiment are used to value the benefits of Bt cotton in Pakistan. Unlike previous research on the economic impacts of Bt, which mostly concentrated on financial benefits in terms of gross margins, we also quantify and monetize positive externalities...

Although in-situ conservation is increasingly considered an efficient way of conserving plant genetic resources, little is known about the incentives and constraints that govern conservation decisions among small farm holders in developing countries. Using a choice experiment approach, we...

Various decentralization experiments are currently underway in the Chinese forestry sector. However, a key question often ignored by researchers and policymakers addresses what farmers really want from reform. This paper uses a survey-based choice experiment to investigate farmers’ preferences...

The Norwegian high-level Green Tax Commission proposes inter alia cost-effective taxes on red meat and increased toll charges on road traffic to reduce greenhouse gas emissions and local air pollution, respectively. Implementation requires support by the public, but the acceptance of such taxes...

Altruistic preferences of various forms may cause difficulties in welfare economics. In the valuation of public goods, such preferences are believed to help explain the substantial non-use values found in many stated preference (SP) valuation surveys. However, studies analysing the effect of...

This paper provides a review of the science pertaining to all aspects of acidification in the Adirondack Park, updating an earlier review of the science (Cook et al. 2002). The review supports an ongoing social science investigation into the willingness to pay for ecological improvements that...

We evaluate the approach currently used by the World Bank to measure exposure to outdoor air pollution and associated economic costs, as reported in the World Development Indicators database. We recommend that current exposure estimates, based on an econometric model, be replaced by estimates...

Cities in developing countries experiencing rapid urbanization and population growth too often lack the financial resources and institutional capacity to provide needed municipal infrastructure for adequate solid waste management, despite citizens’ demand for it. This paper uses a...

Concerns about nutrient pollution in the Chesapeake Bay have led to the establishment of pollution limits—total maximum daily loads (TMDLs)—which, by 2025, are expected to reduce nitrogen loadings to the Bay by 25 percent and phosphorous loadings by 24 percent from current levels. This paper...