利率曲线的基本概念很好的总结对比，非常有利于学习和理解。

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In this primer we consider the zero-coupon or spot interest rate and the forward rate. We also look at the yield curve. Investors consider a bond yield and the general market yield curve when undertaking analysis to determine if the bond is worth buying; this is a form of what is known as relative value analysis. All investors will have a specific risk/reward profile that they are comfortable with, and a bond’s yield relative to its perceived risk will influence the decision to buy (or sell) it.
We consider the different types of yield curve, before considering a specific curve, the zero-coupon or spot yield curve. Yield curve construction itself requires some formidable mathematics and is outside the scope of this book; we consider here the basic techniques only. Interested readers who wish to study the topic further may wish to refer to the author’s book Analysing and Interpreting the Yield Curve. "