Competition and Quality: Evidence from High-Speed Railways and Airlines
利用2009年以来北京至113个国内航班的准点数据，研究发现高铁进入显著降低了受影响航线的航班延误均值和波动，主要渠道是减少出发延误和目的地机场滑入时间。
Abstract The entry of High-Speed Railways (HSR) represents disruptive competition to airlines. Utilizing a unique dataset of all flights departing from Beijing to 113 domestic destinations in China since January 2009, we employ a difference-in-differences approach to examine the effects of HSR entry on on-time performance and to identify the channels. We document two main findings. First, the entry of HSR leads to significant reductions in the mean and variance of travel delays on the affected airline routes. Second, the reductions in departure delays and taxi-in times at the destination airports are identified as the main channels.