QM1_Time value of Money

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总体框架

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Time Value

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 Interest Rate

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rf: 无风险收益率 (CFA中一般认为是美国短期国债T-bill的收益率)

Nominal risk-free rate: 名义无风险税率

Real risk-free rate: 实际无风险利率

Liquidity premium: 流动性风险溢价

Maturity premium: 到期风险溢价

 Risk premium: 风险溢价

费雪效应

 Nominal interest rate和Stated Interest rate是一个概念

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Effective annual rate(EAR)

For discrete compounding

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Where: m is the compounding frequency
............. r is the noinal/quoted/stated annual interest rate
............. r/m is periodic interest rate

For continuous compounding

时时刻刻分分秒秒在计息.

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例: 算名义年利率是8%, 求连续计算情形下的EAR.
....计算器按法: 0.08 --> 2ND --> LN ==>结果: 1.083287

Conversion of PV/FV

Present Value (PV)

The value of an initial investment.

Future Value (FV)

The value of an initial investment would be worth n period from today.

Conversion of PV/FV:

compounding:

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continuous compounding:

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站在今天去推测未来会价值几何: PV --> FV : 复利
站在未来推测今天需要存入多少: FV --> PV :折现

Annuity

Ordinary annuity

all constant cash flows occuring at the end of each period(END), 后付年金

Annuity due

all constant cash flows occuring at the beginning of each period(BEG), 先付年金

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Prepetuity

a set of constant never-ending sequential cash flows occuring at the end of each period, 永续年金
PV = A/R
where A: the periodic payment
......r: the periodic return

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 推荐用第三种方式, 就不用再把计算器在END和BGN模式之间去转换.

 

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