Conner runs a rafting company on a local river. He runs two kinds of tripsa wild whitewater experience and a more mellow wildlife tour. If he spends the day only doing whitewater trips, he can do 4 trips per day, if he spends the day only doing wildlife trips, he can do 5 trips. If he does some of each, however, he can do more total trips: 3 whitewater trips and 4wildlife trips. Suppose that Conner's time is valued at $27 an hour. What can you say about his economies of scope? That is, what is the sign of his measure of economies of scope, SC? Conner's measure of economies of scope (SC) is Therefore, his work exhibits