共 16 条
- [2] David PA, 1984, 2 STANF U CTR EC POL
- [3] DAVID PA, 1969, 71 STANF U RES CTR E
- [4] DAVIES S, 1979, DIFFUSION PROCESS IN
- [5] TIME PATHS IN THE DIFFUSION OF PRODUCT INNOVATIONS [J]. ECONOMIC JOURNAL, 1982, 92 (367) : 630 - 653
- [8] JOVANOVIC B, 1989, AM ECON REV, V79, P690
- [9] JOVANOVIC B, 1988, COMPETITIVE DIFFUSIO