An empirical analysis of delays in the Turkish Airlines network

Resul Aydemir, David Thomas Seymour*, Asil Buyukdagli, Bulent Guloglu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


This paper investigates the determinants of delays on international and domestic routes of Turkish Airlines in 2014, focusing on the effects of airport market share and airport market concentration. When examining the impact of airport market share, we find that delays are decreasing in market share for both domestic and international routes. We use market concentration to test whether airlines internalize the cost of the delays for their passengers. We find results that are consistent with the internalization hypothesis on domestic routes; however, on international routes, our estimates are inconsistent with the internalization hypothesis. We propose that these results may be due to market share being more critical than market concentration in determining delays and that the internalization effect is limited. Additionally, we find that delays are lower at airports that connect to more destinations.

Original languageEnglish
Pages (from-to)76-87
Number of pages12
JournalJournal of Air Transport Management
Publication statusPublished - Oct 2017

Bibliographical note

Publisher Copyright:
© 2017 Elsevier Ltd


  • Airport delays
  • Congestion externalities
  • Turkish Airlines


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