Borts G.H. (1960) The Estimation of Rail Cost Functions. Econometrica 28:108-131.
Caves D.W., Christensen L.R. (1980) The Relative Efficiency of Public and Private Firms in a Competitive Environment: The case of Canadian Railroads. Journal of Political Economy 88:958-976.
Caves D.W., Christensen L.R., Swanson J.A. (1981) Productivity Growth, Scale Economies and Capacity Utilisation in U.S. Railroads, 1955‐74. American Economic Review 71:994-1002.
Deprins D., Simar L., Tulkens H. (1984) Measuring labor‐inefficiency in post offices. The Performance of Public Enterprises: Concepts and Measurement , Marchand, M., Pestieau P., H. Tulkens, (eds), North‐Holland, Amsterdam, p.; 243-267.
Farrell M.J. (1957) The Measurement of Productive Efficiency. Journal of the Royal Statistical Society. Series A (General) 120:253-290.
Forsund F.R., Knox Lovell C.A., Schmidt P. (1980) A Survey of Frontier Production Functions and of their Relationship to Efficiency Measurement. Journal of Econometrics 13:5-25.
Gathon H.J., Productivité globale et comptes de surplus: le cas de seize compagnies de chemin de fer, Annales de l'Economie Publique, Sociale et Cooperative, dans le présent numéro.; 1986.
Keeler T.E. (1974) Cost, Returns to Scale and Excess Capacity. The Review of Economics and Statistics 56:201-208.
Klein L.R. A textbook of Econometrics, Row Peterson, New York; 1953.
Marchand M., Pestieau P., Tulkens H. (1984) The performance of public entreprises, normative, positive and empirical issues. The Performance of Public Enterprises: Concepts and Measurement , Marchand, M., Pestieau P., H. Tulkens, (eds), North‐Holland, Amsterdam, p.; 243-267.
Meyer, John R. (1958) Some Methodological Aspects of Statistical costing as illustrated by the determination of Rail Passenger Costs. American Economic Review , Papers and Proceedings, vol.; 48:209-222.
Nash C. (1985) European Railway Comparisons ‐ what can we learnt. International Railway Economics , Bulton, K.J., Pitfield, D.E., (eds), Gower House, London, p.; 237-270.
Perelman S., La performance technique des reseaux de chemins de fer, une comparaison internationale, Cahiers du Ciriec, no 86/11, Liège.; 1986.
1984.
Tulkens H., The performance approach in public enterprise economics: an introduction and an example, Annales de l'Economie Publique, Sociale et Cooperative, dans le présent numéro.; 1986.