Two bonds A and B have the same yield to maturity. A prices at 90 while B prices at 110. Which one has the higher coupon?

To determine which bond has the higher coupon, let's break down the information provided:

1. Bond A's price is 90.
2. Bond B's price is 110.
3. Both bonds have the same yield to maturity.

The coupon rate represents the annual interest payment as a percentage of the bond's face value. Generally, bonds with higher coupon rates offer higher interest payments to bondholders.

To determine the coupon rate, we need to compare the bond prices with their face values. The face value of a bond refers to the amount the issuer will repay the bondholder at maturity.

To find the coupon rate, divide the annual interest payment by the face value of each bond. However, we don't have the exact values for either the interest payment or the face value in this case.

Given the information provided, we cannot directly determine which bond has the higher coupon rate. To get the exact coupon rates of both bonds, we would need additional information such as the face value or the interest payment for each bond.