4Avinash K. Dixit, Robert S. Pindyck. Investment under Uncertainty [M]. Princeton,NJ: Princeton University Press, 1994.
5Ashby M F, Johnson K. Materials and design: the art and science of material selection in product design[M]. Butterworth Heinemann, 2013.
6Lewis N, Eschenbach T, Hartman J. Where real options might really work[C]. New England American Society for Engineering Education Conference, 2007.
7Davis G A. Estimating volatility and dividend yield when valu- ing real options to invest or abandon[J]. The Quarterly Review of Economics and Finance, 1998, 38(3): 725- 754.
