Suppose you have won a free ticket to see a Bruce Springsteen concert. This ticket has no resale value.Also suppose that U2 has a concert the same night. The U2 concert represents your next-best alternative activity to the Springsteen concert. Tickets to the U2 concert cost $78, and on any particular day, you would be willing to pay up to $175 to see U2. Assume that there are no additional costs of seeing either show.

Based on the information presented here, the opportunity cost of seeing Bruce Springsteen is