“…With this, we observed that market prices in the quotation are higher than prices in the electronic auction, that is, the bidding process in the electronic auction modality allows a price difference between the items when compared with the market prices. This fact is explained in Oura et al (2012), in which companies can substantially burden the values in the preparation phase of the bidding, in order to obtain additional profits when the bidding process occurs, that is, the companies that provide reference price budgets participate in the bidding contest offering prices below the estimated value, this fact is credited to the opportunism of the bidder, or the supplier. As stated by Faria et al (2010), most suppliers seek to increase the frequency of transactions by creating more favorable pricing policies for known public agencies, the frequency of transactions is also advantageous for the bidder, since the accumulation of information on the bidder agency allows the reduction of costs associated with the unpredictability of the negotiation, inducing a lower price to gain competition.…”