What are the reasons for the negative consequences of these bonus schemes? Modify these schemes to solve the problems.

• A call center is using the metric of average time per call when rewarding employees. In order to keep their average time low, employees are hanging up on customers when they think that the call will take too long to answer.
• In a department store, salespeople are rewarded based on their sales volume. The problem is that they are giving substantial discounts and pressuring customers to make unnecessary purchases.
• All employees at a factory are receiving a large bonus if there are no reported injuries for six months. As a result, some employees are hiding their injuries so that they do not cause others to lose their bonus.