1. Arellano, M., Bond, S.: Some tests of specification for panel data: Monte Carlo evidence and an application to employment equations. Rev. Econ. Stud. 58, 277–297 (1991)
2. Balcombe, R., Mackett, R., Paulley, N., Preston, J., Shires, J., Titheridge, H., Wardman, M., White, P.: The demand for public transport: a practical guide. Transportation Research Laboratory Report, Transportation Research Laboratory, London (2004)
3. Benham, J.L.: Analysis of a fare increase by use of a time-series and before-andafter data. Transp. Res. Rec. 877, 84–90 (1982)
4. Bates, J., : Transit operating costs and fare requirements forecasting by using regression modelling. Transp. Res. Rec. 877, 75–79 (1982)
5. Berechman, J.: Public transit economics and deregulation policy. North-Holland, Amsterdam (1993)