In 2015, it was revealed that Volkswagen (VW) had installed software on its diesel cars in order to circumvent US emissions tests. Carefully, outline what this scandal involved, and explain why the actions of the VW management were unethical. Discuss what issues may have caused this behavior to occur, and what you would do to prevent this from happening in the future. Evaluate the impact of this scandal on the value of VW, and explain why the value of the firm may change by more than the cost of the recall to correct the issue.