“…However, costs of retendering may increase due to unreasonable low initial tender prices and a decreasing number of competitors (Wallis et al, 2010;Hensher and Stanley, 2010). Also, competitive tendering may generate administrative costs to operators and regulators (Hensher, 1988;Saussier et al, 2009;Gil and Marion, 2012;Yescombe, 2007). Third, most of the studies focus primarily on cost savings rather than on value for money.…”