这道题不是问具体措施吗？我看答案怎么回答的是这个方法的定义

问题如下：

Kevin Baker is a fixed income portfolio manager at White Capital Inc. (WC). WC is a US-based investment firm specializing in fixed income and alternative investments and manages accounts for many institutional clients.

Baker meets with a client, Thomas Zerke, who wants to immunize a single 8-year liability of $65,000,000. The present value of the liability is $55,450,550.

Baker explains to Zerke that immunization is a process of structuring and managing a fixed income bond portfolio to minimize the variance in the realized rate of return over a known time horizon. This variance arises from the volatility of future interest rates. Baker adds that there are several available methods for immunizing a liability, including cash flow matching, duration matching, and contingent immunization. (2023Mock A)

A. Describe the cash flow matching and the duration matching immunization methods. (答案只需写出和cash flow matching相关的内容)

选项：

解释：

Correct Answer:

Cash flow matching is an immunization approach that attempts to ensure that all future liability payouts are matched precisely by cash flows from bonds (coupons and bond principal) or fixed income derivatives. A motive for cash flow matching can be accounting defeasance, whereby both the assets and liabilities are removed from the balance sheet.