Tina's mother and father pay her car insurance as long as she makes good grades. This is an example of which economic concept? Positive incentive. A positive incentive is a value that is given during the performance of a regular behavior. As long as Tina does what she is supposed to her parent's will continue to pay her car insurance. There is a reward for her doing what she should be doing on her own which is motivating her to continue to do it.