Answer: People respond to economic incentives.
Explanation:an incentive can influence different individuals in different ways. Responses to incentives are predictable because people usually pursue their self-interest. Changes in incentives cause people to change their behavior in predictable ways. Incentives can be monetary or non-monetary.One of the clearest examples of where people respond strongly to incentives is retirement. If you raise the retirement age, many people who'd otherwise be eligible continue to work. Since retirement probably increases life satisfaction/happiness and perhaps even health we obviously want it to happen at some point, but since it's also very costly in terms of benefits paid and productive activity not done, we want to be mindful of both costs and benefits.