Which of the following statements about duration is TRUE（）
A. The result of the formula for effective duration is for a 0.01% change in interest rates.
B. A bond’s percentage change in price and dollar change in price are both tied to the underlying price volatility.
C. The formula for effective duration is: (price when yields fall - price when yields rise)/(initial price × change in yield expressed as a decimal).
参考答案：B
解析：
The effective duration formula result is for a 1.00% change in interest rates (100 basis points equals 1.00% , or 0.01 in decimal form). The denominator in choice C is multiplied by 2. The greater the duration, the greater the price volatility. Remember that price volatility is directly related to maturity and inversely related to the coupon rate.
说法错误的是（）