2010 - World Bank - Effect of Varying Input Data on Cost-Benefit Analysis

Report analysing results from six countries which compares the results of the economic analyses of the two cases: one is that of original cost benefit analyses that were conducted without the knowledge of economic downturn, and another of a hypothetical case where all relevant effects of economic downturn on the inputs of the analyses were assumed to be known at the time the analyses. The effect of economic downturn on the viability of projects can be identified as the difference in the outputs of these analyses in terms of economic summary indices such as net present values (NPV), NPV per unit length of road (NPV/km), economic internal rate of return (ERR), etc.