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The demand elasticity on tolled motorways
Matas i Prat, Anna; Raymond Bara, José Luis
Universitat Autònoma de Barcelona. Departament d'Economia Aplicada
This paper analyses the elasticities of demand in tolled motorways in Spain with respect to the main variables influencing it. The demand equation is estimated using a panel data set where the cross-section observations correspond to the different Spanish tolled motorways sections, and the temporal dimension ranges from the beginning of the eighties until the end of the nineties. The results show a high elasticity with respect to the economic activity level. The average elasticity with respect to petrol price falls around -0.3, while toll elasticities clearly vary across motorway sections. These motorway sections are classified into four groups according to the estimated toll elasticity with values that range from -0.21 for the most inelastic to -0.83 for the most elastic. The main factors that explain such differences are the quality of the alternative road and the length of the section. The long-term effect is about 50 per cent higher than the short term one; however, the period of adjustment is relatively short.
Transport -- Aspectes econòmics
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Working Paper
Document de treball (Universitat Autònoma de Barcelona. Departament d'Economia Aplicada); 0203

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