Mona Lisa has just started working for Tom and wants to leave early to go to a concert that she received tickets for. Based on her logic, if Tom were to say no then it would feel like he’s taking something away from her. Even though she didn’t purchase the item, the feelings of loss are often stronger than the amount of gains for an item.
See more: behavioral, endowment effect, framing, loss aversion
Economics of Parks & Recreation 