In their article "An Arbitrage-Free Approach to Quasi-Option Value" [J.Environm. Econom. Management 35, 103-125, 1998], Coggins and Ramezani interpreted the concept of quasi-option value introduced by Arrow and Fisher [Quart. J. Econom. 88, 1974, 312-319] as being identical to Dixit and...

In the presence of uncertainty and irreversibility, dynamic decision problems should not be solved using expected net present value analysis. The right to delay a decision can be valuable. We show that the value of this right equals Arrow and Fisher's [K. J. Arrow and A. C. Fisher, Environmental...