Through a survey the authors study willingness to pay for improvements in air quality in Sofia, Bulgaria. Using a stochastic payment car approach - asking respondents the likelihood that they would agree to pay a series of prices - they estimate the distribution of willingness to pay various...

The authors use the World Bank's Living Standards Measurement Study (LSMS) surveys from 15 countries (covering more than 55,500 households) to examine the relationship between infrastructure coverage and household income. The results show that throughout the world all income groups have much...

What economic and political factors have made cost recovery for rural water systems so difficult in the Nsuuka district of Anambra State? This paper found that households in the region do not want to pay for water in advance or commit themselves to a fixed monthly payment for water. They want...

The authors measure the monetary value households place on preventing malaria in Tembien, Tigray Region, Ethiopia. They estimate a household demand function for a hypothetical malaria vaccine and compute the value of preventing malaria as the household's maximum willingness to pay to provide...

This paper presents a case study of water vending in Onitsha, Nigeria, one of the most important market towns in West Africa. It illustrates that a rapid reconnaissance survey of water vending activities and the willingness of households to pay for improved water services can yield valuable...

Economic valuation is controversial largely because its purpose has not been clearly conveyed to non-economists. The purpose of valuation of the natural world is to elicit measures of human preferences for, or against, environmental change. As a procedure, it thus faces two immediate...