Renégotiation de contrats dans l’industrie du transport urbain en France

Abstract

This paper describes the renegotiation of delegated management contracts in the French urban transport. We brie y describe the sector, sketch a theoret- ical model showing that contract renegotiation explains an increasing pro le of subsidies over time. This model is nally estimated. Our analysis shows that wrongly assuming that local governments can fully commit to a pro le of subsidies and do not renegotiate contracts leads to systematically overesti- mating the e¢ ciency of rms in the sector.