共 7 条
- [1] ADAMS WJ, 1992, EC PREVISION, V102, P27
- [2] AVERCH H, 1962, AM ECON REV, V52, P1052
- [4] GILBERT RJ, 1982, AM ECON REV, V72, P514
- [5] JORDE TM, 1992, ANTITRUST INNOVATION
- [6] Reinganum JF, 1989, HDB IND ORG, V1, P849
- [7] WILLIAMSON OE, 1968, AM ECON REV, V58, P1372