Estimation of a Model of Entry in the Airline Industry
估计航空公司机场运营规模对航线盈利的影响，利用进入决策推断盈利性，发现航线利润随机场存在感增加而上升，随进入企业数增加而快速下降。
This paper considers the effect of an airline's scale of operation at an airport on the profitability of routes flown out of that airport. The empirical methodology uses the entry decisions of airlines as indicators of underlying profitability; the results extend the empirical literature on airport presence by providing a new set of estimates of the determinants of city-pair profitability. These estimates imply that city-pair profits increase in airport presence and decrease rapidly in the number of entering firms. The literature on empirical models of oligopoly entry is also extended via a focus on the role of differences between firms.