How should tax systems be designed to account for the characteristics of the government, the oil companies and the projects in order to maximise welfare for the country's inhabitants? How should vital government characteristics reflected in parameters such as impatience to obtain tax revenue -...

Oil project assessment using separate cash flow valuation (Jacoby and Laughton, 1992; Laughton and Jacoby, 1993; Emhjellen and Alaouze, 2002), presumes that the present value of the cost cash flow of oil projects can be calculated using a risk free rate. This paper examines whether this practise, at...