Household Demand For Improved Water Services in Ho Chi Minh City: A Comparison of Contingent Valuation and Choice Modeling Estimates

Submitted by Luat Do on
EfD Authors:

This study assesses the willingness of people in Ho Chi Minh City, Vietnam to pay for improvement in their water supply system. It also investigates what aspects of water supply, such as quality and water pressure, are most important. The study was carried out in response to the growing number of water supply problems in the city. It was also done to highlight the need for 'consumer demand' to be given priority in water supply planning.

Water

The value of forest water purification ecosystem services in Costa Rica

Submitted by Petra Hansson on

Highlights

•  Avoiding 1% of catchment's forest loss reduces chemicals use by 0.026% in Costa Rica.

• Improving the turbidity by 1% decreases 0.005% aluminum sulfate needed at the water plants.

• The value of water purification service by forests is USD 9.5 per hectare per year.

• The contribution of forest (per ha) becomes larger as the size of the catchment decreases.

Biodiversity, Forestry, Water

Connectivity at a cost: Economic dynamics of restoring habitat connectivity

Submitted by Vicentia Quartey on
EfD Authors:

Both in the United States and in Europe there is ongoing work on reversing habitat fragmentation and the attendant loss in biodiversity in river systems caused by hydropower and other developments. Fish ladders and other measures are being introduced to restore the connectivity in river systems. In this paper, we set up a theoretical model to investigate what the conditions are for such an investment to be socially profitable.

Biodiversity, Water