Figure 3

Example variables illustrating the main differences between both government periods. Left: Differences between contracts in the EFOS class. Top Left: Fraction of ‘‘micro companies” (S.MIC) for the contracts in the EFOS class. In green, boxplot of the 6 years comprising the 1st government period. Bottom Left: Cumulative distribution function (CDF) for the number of weeks that the contract lasted (EBWeeks). The green area represents the CI at 99% generated by the data of the 1st period. Center: Differences between contracts in the PCS class. Top Center: Fraction of contracts in the PCS class with ‘‘large” companies (S.NOM). Bottom Center: CDF for week that the contract began (BeginningWeek). Right: Differences between contracts in the NC class. Top Right: Fraction of contracts following the NAFTA procedures (PC.ITLC) in the NC class. Bottom Right: CDF for the maximum spending made by a buyer with a single supplier (T.Spending.Max). In all graphs, the orange line corresponds to the mean of the 1st government period, and the two purple colored curves correspond to the first two years of the second government period