Potential Competition in the Deregulated Airlines
用新数据集研究航空市场中潜在竞争、价格与进入的关系，发现当前价格影响未来进入，且进入壁垒仅通过提高集中度间接影响价格。
Using a new and unique data set, this paper applies a systems approach to the study of potential competition, prices, and entry relations in airline city-pair markets. Consistent with limit pricing models, future entry is directly influenced by current prices. Current prices thus appear to provide an important signal to potential entrants about the probability of profitable entry. While results indicate the existence of barriers to entry, these barriers appear to have no independent effects on price beyond there effect on actual competition through increases in concentration. Copyright 1990 by MIT Press.