References
- Belsley , D.A. 1988 . Two- or three stage least squares? . Computer Science in Economics and Management , 1 : 21 – 30 .
- Bureau of Transportation Statistics , 2010 . Database name: air carrier statistics (form 41 traffic) – all carriers T-100 international segment . Washington , DC : US Department of Transportation .
- EU-European Information on Transport and Services , 2007 . EU US ‘Open Skies’ Agreement: Issues. Available from: http://www.euractiv.com/en/transport/eu-us-open-skies-agreement/article-167482 [Accessed 4 October 2011]
- Green , W.H. 2003 . Econometric analysis , 5th ed , Upper Saddle River , NJ : Prentice Hall .
- IATA – Binggeli , U. and Pompeo , L. , 2006 . analyst viewpoint: does the s-curve still exist? Available from:http://www.iata.org/NR/rdonlyres/F24E42B7-A8AC-4B8C-B268-4AABCF895843/0/McKinsey_SCurve.pdf [Accessed 4 October 2011] .
- Pitfield , D.E. , Caves R.E. , and Quddus , M.A. , 2008 . An econometric analysis of the trade-off between frequency and aircraft size on north Atlantic routes . 8th World Congress of the Regional Science Association International , 17–19 March , 2008 , São Paulo, Brazil .
- Ramsey , J.B. 1969 . Tests for specification errors in classical linear least squares regression analysis . Journal of the Royal Statistical Society B , 32 : 350 – 371 .
- Stiglitz , J.E. 1993 . Economics , New York : W.W. Norton .