This review considers the role of environmental effects in transport investment appraisal, mainly from the perspective of cost-benefit analysis, the most widely adopted appraisal technique. Although the basic principles of CBA are straightforward, several complications are identified that may...

High-Speed Rail (HSR) is designed for travelers with high value of time. HSR offer fast and reliable services and good possibilities for work during the journey. Surprisingly, these benefits of HSR investment proposals are often appraised by use of travel-time valuations of people who use...

Long-term investments in individual and social human capital, such as preschool, school, family support, early-intervention for youth at risk and other programmes that are part of the welfare services provided by local government in Sweden are generally managed with one-year-ahead budget...

Tail-hedge discounting is based on decomposition of returns from long-term investments in a fraction (gamma) that is correlated with consumption and another that is not. The first part is discounted at a discount rate that includes a risk premium, the other with the risk-free rate. We estimate...

Weitzman (2012, 2013) has suggested a method for calculating social discount rates for long-term investments when project returns are covariant with consumption or other macroeconomic variables, so called "tail-hedge discounting". This method relies on a parameter called "real project gamma"...

There is an increasing demand for transport decisions to be made in thelight of some form of what may generically be called cost benefit analysis(CBA). The actual techniques may vary and often deviate quite significantlyfrom the conventional economic concept of CBA but in all cases theprocedures...

This paper derives a dynamic cost-benefit rule for evaluating large projects.We show that, in addition to the conventional income and consumer surplus measures, the rule also entails an extra term involving capital cost changes.