7. Suppose that you were the manager of a large retail store that was currently experiencing a shoplifting problem. Every hour, approximately $15 worth of merchandise was being stolen from your store. Suppose that a security guard would completely eliminate the shoplifting in your store. If you were interested in maximizing your profits, should you hire a security guard if the wage rate of security guards was $20 per hour? Why or why not? What does this imply about the relationship between average shoplifting per hour in the economy and the wage rates of security guards?