這題是在課本 Equity and fixed income P.516 第24題
有問題的是 statement 2
"Incorporating convexity into the analysis of non-callable bond's
price changes as interest rates change always results in higher
bond price estimates than derived by using only the bond's
duration. This is true whether interest rates increase or
decrease."
請教一下這句話那裡有問題？
課本解答的不是很清處的感覺，以下課本解答：
"Duration is a linear approximation. It's the tangent line to the
actual bond pricing curve is convex. Because of convexity, actual
prices (i.e., those on the actual pricing curve) will always above
the tangent line."
謝謝^^
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有問題的是 statement 2
"Incorporating convexity into the analysis of non-callable bond's
price changes as interest rates change always results in higher
bond price estimates than derived by using only the bond's
duration. This is true whether interest rates increase or
decrease."
請教一下這句話那裡有問題？
課本解答的不是很清處的感覺，以下課本解答：
"Duration is a linear approximation. It's the tangent line to the
actual bond pricing curve is convex. Because of convexity, actual
prices (i.e., those on the actual pricing curve) will always above
the tangent line."
謝謝^^
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