Does Competition for the Field Improve Cost Efficiency? Evidence from the London Bus Tendering Model

In this paper we investigate the relationship between auctions’ results and the number of bidders for local transportation contracts in London. Using an original database concerning 294 local transportation routes we find that a higher number of bidders is associated with a lower cost of service. This finding, in addition of being one of the first empirical test of a crucial and understudied theoretical issue has important policy implications, especially for countries in which bids are organized such that only few bidders are allowed to answer (e.g. France).