Application of the social discount rate to public sector projects is one of the most crucial parameters in cost benefit analysis. Because of its importance some countries have a formal discount rate and method of discounting policies. The United Kingdom was one of the earliest to adopt a policy...

Pareto welfare criterion based on people’s willingness to pay for a project’s output is regarded by many as a narrow interpretation of improvement in social well-being. A broader opinion is that even though poorer individuals may be less able to pay for a particular benefit, they may obtain...