Winners and losers in tolled motorway renegotiations: an empirical evaluation of the Spanish pioneers

This paper evaluates the welfare impact of a tolled motorway contract renegotiation in Spain. The results show that, after renegotiation, both taxpayers and the private concessionaire were better off. However, road users lost out. An agreement leaving road users unaffected, while securing gains for taxpayers and the concessionaire, would have been possible by negotiating a larger reduction in tolls linked to the extension of the contract duration.