Final answer:
The behavior exhibited by Hailey in this situation represents the Whistleblower Model of decision making.
Step-by-step explanation:
The behavior exhibited by Hailey in this situation represents the model of decision making known as the Whistleblower Model. The Whistleblower Model involves an individual witnessing unethical or illegal behavior within an organization, and taking action to report it to an external authority or higher-ups in the organization.
In this case, Hailey noticed that her company was overbilling the government, and she informed her boss about the issue. However, when her boss failed to take any action, she decided to report the wrongdoing to her government contact.
This model of decision making is characterized by the individual's commitment to ethical behavior and transparency, and their willingness to take risks and stand up against wrongdoing in order to serve the greater good.