Mining international has 9 million shares of common stock outstanding. The current share price is $58, and the book value per share is $16. It also has two bond issues outstanding. The first bond issue has a face value of $70 million, has a 7 percent coupon, and sells for 95 percent of par. The second issue has a face value of $55 million, has an 8 percent coupon, and sells for 102 percent of par. The first issue matures in 21 years, the second in 6 years.

1. What are its capital structure weights on a book value basis?

2. What are its capital structure weights on a market value basis?

3. Which are more relevant, the book or market value weights? Why.