Gollier and Weitzman (2010) show that if future consumption discount rates are uncertain and persistent, the consumption discount rate should decline to its lowest possible value for events in the most distant future. In this paper, I argue that the lowest possible growth rate of consumption per...

In this note we discuss how a cost–benefit analysis could be formulated in a second-best world where lump-sum taxation is not available. The question is how the government's budget is balanced. Different options are available. A value added tax or an income tax or a profit tax could be...