We compare two commonly used mechanisms in procurement: auctions and negotiations. The execution of the procurement mechanism is delegated to an agent of the buyer. The agent has private information about the buyer's preferences and may collude with one of the sellers. We provide a precise...

Public procurement contracts require frequent renegotiation. We exploit the Czech implementation of an EU policy as a natural experiment to investigate the effect of eased renegotiation rules. We document that the eased renegotiation rules decreased winning bids but did not change the final...

We compare two commonly used mechanisms in procurement: auctions and negotiations. The execution of the procurement mechanism is delegated to an agent of the buyer. The agent has private information about the buyer s preferences and may collude with one of the sellers. We provide a precise...

We provide a positive analysis of the equilibrium bidding and bribing strategies with and without corruption in a first-price, sealed-bid, procurement auction with two-dimensional-type bidders. With corruption, we assume that the quality of the bidders are unobservable and non-contractible...

We study the potential benefits of adding a lottery component to cut the main risks associated with standard negotiated and rule-based auction procurement procedures. We show that adopting a two stage approach in which bureaucrats first negotiate with a small number of bidders to assess their...

Operation Car Wash began in 2014 and brought to light corruption schemes within public procurement. It prompted Brazil to intensify its legal crusade against corruption and improbity. Brazil improved enforcement of rules long ignored, and it adopted legislation to face the new challenges. The...

Using big data from the Brazilian public procurement system, this research aims to investigate what factors are associated with the occurrence of anticompetitive practices in electronic bidding. Our analysis considers all services contracted between 2014 and 2017. The study uses the logit...

In this paper I study two methods often used in public procurement to deal with the risk that the winning bidder may default on his bid: augmenting the standard first price auction with an ex-post verification of the responsiveness of the bids and using an average bid auction. I show that when...

We consider innovation contests for the procurement of an innovation under moral hazard and adverse selection. Innovators have private information about their abilities, and choose unobservable effort in order to produce innovations of random quality. Innovation quality is not contractible. We...

This study explores stability in efficient collusion in government procurement auctions. In first- and second-price auctions with independent private values, we look at the possibility of vetoing collusion mechanisms and the learning of the other bidders after vetoing. The collusions in...