The Dominant-Firm Advantage in Multiproduct Industries: Evidence from the U. S. Airlines
提出一种方法，在控制成本和质量差异后，估计航空业中主导企业（在机场占主导地位的航空公司）在吸引从该机场出发的旅客方面的优势，使用1986年数据发现显著优势。
In many industries, the largest firms are most successful in entering and competing in individual markets or submarkets. While this success is often attributed to cost or quality differences, it may also reflect reputation advantages or marketing strategies that benefit firms selling a wider variety of products in the industry. I present an approach to estimating the advantages of a dominant firm in the airline industry that allows one to effectively control for cost and quality heterogeneity. Results using data from 1986 indicate that an airline with a dominant presence at an airport will have a significant advantage in attracting customers whose trips originate at that airport, regardless of the specific route on which the customer is traveling.