A.switching to
B.flourish
C.marketplace
A. which companies will【T7】______
B. who have the option of【T8】______trucks
C. who loses in the【T9】______
Railroads justify rate discrimination against captive shippers on the grounds that in the long run it reduces everyone's cost. If railroads charged all customers the same average rate, they argue, shippers【T10】______ or other forms of transportation would do so, leaving remaining customers to shoulder the cost of keeping up the line. It's theory to which many economists subscribe, but in practice it often leaves railroads in the position of determining【T11】______ and which will fail. "Do we really want railroads to be the arbiters of who wins and【T12】______ ?" asks Martin Bercovici, a Washington lawyer who frequently represents shipper.