共 50 条
- [34] FREE ENTRY AND SUSTAINABILITY OF NATURAL MONOPOLY [J]. BELL JOURNAL OF ECONOMICS, 1977, 8 (01): : 1 - 22
- [36] FREE COMPETITION BY FREE ENTERPRISE [J]. AMERICAN JOURNAL OF ECONOMICS AND SOCIOLOGY, 1985, 44 (04) : 490 - 490
- [39] FREE ENTERPRISE, FREE LUNCHES, AND FREE RIDES [J]. MSU BUSINESS TOPICS, 1978, 26 (03): : 13 - 16