共 43 条
- [11] Bowman E. H., 1980, SLOAN MANAGE REV, V21, P27
- [12] BOWMAN J, 1980, J ACCOUNT RES, V18, P242
- [13] Caves R. E., 1980, COMPETITION OPEN EC
- [14] Chatfield C, 1984, ANAL TIME SERIES INT
- [16] COASE RH, 1937, ECONOMICA, V4, P331
- [19] Gort M., 1962, DIVERSIFICATION INTE
- [20] HAHNEL R, 1982, CAMBRIDGE J ECON, V6, P185