Transaction costs

Eleanor no longer needs her old couch. She pays $$30$ to post an ad in the local paper: "FREE couch$-$you haul." Kevin needs a couch for his He spots the ad and rents a van for $$80$ an hour in order to haul the couch. Kevin earns $$26$ per hour as a loan officer. He takes an hour off $w$ order to pick up the couch.

The transaction costs associated with this exchange are