Why do public buyers use competitive bidding instead of negotiation to select a contractor? To shed light on this question, we consider the impact on the main economic determinants identified in the literature on the choice of auctions versus negotiations, namely competitive intensity, buyer?s...

The relative efficiency of auctions and negotiations is still a puzzle in the literature. While auctions are the prescribed procedures and the most used ones for public procurement, in the private sector, where buyers are free to choose their purchasing method, competitive tendering is far from...