The CFO is proposing that her company repurchases stock to increase leverage because the company's current leverage ratio is 15% and the CFO believes that higher leverage will increase company value. But a board member who is a CEO of another company noted that increasing leverage is not good for the company because interest rates on government bonds are very high. The company is mature and highly profitable, and has an investment-grade credit rating (rating of A). Who is right, the CFO or the board member and why?