This paper presents an analysis of the procurement of transportation services for the disabled by the town of Ridderkerk. The method used consisted of a study of the town’s files and interviews with 11 persons involved. The tender specifications were peculiar in that they required bidders to submit a schedule with prices per ride for seven classes ranging from 100,000 to over 600,000, whereas the real number of rides amounted to 270,000. One of the bidders quoted high prices for the first classes and very low prices for the last classes. On the basis of all seven classes, he quoted the lowest costs and won the contract. However, on the basis of the real number of rides he was the second most expensive bidder.
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