Exam 20: Brownian Motion and Itos Lemma

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The value of Z(t)at any point in time can be described as a process in which there is a cumulative effect of infinitely small movements.This process is called:

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B

For purposes of option pricing,when the movement of a stock price follows a geometric Brownian motion,the stock price is said to follow which type of distribution?

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C

Assume the following: LN(S)and LN(Q)have a correlation coefficient of -0.65,S(0)= 55,Q(0)= 60,r = 0.04,σs = 0.22 σQ = 0.15,and dividends = 0.Using formula 20.39,what is the price of a claim that pays Q/ S\sqrt{S} ?

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A

Assume a stock price of S(0)= $62.00,r = 0.05,σ = 0.30,and dividend = 0.What is the price of a claim that pays S \sqrt{S} ? Use formula 20.29.

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Why is Brownian motion the foundation for modern derivatives pricing models? Attempt to elicit responses that understand the shortcomings of using this motion for just asset pricing and the advantages in risk measurement.

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A Brownian motion is a stochastic process that can be described as a:

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When considering drift and noise,how would you explain price movements over smaller and smaller time intervals?

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The deterministic drift of a pure Brownian motion that is virtually undetectable is sometimes referred to as the:

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What are two important implications of assuming that prices follow a geometric Brownian motion?

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Assume the following: LN(S)and LN(Q)have a correlation coefficient of -0.20,S(0)= 45,S(Q)= 55,r = 0.03,σs = 0.18 σQ = 0.28,and no dividends.Using formula 20.39,what is the price of a claim that pays 1/ QS\sqrt{Q S} ?

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Assume a stock price of S(0)= $80.00,r = 0.05,σ = 0.35,and dividend = 0.01.What is the price of a claim that pays S⁻²/³? Use formula 20.29.

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Assume a stock price of S(0)= $83.00,r = 0.045,σ = 0.25,and dividend = 0.02.What is the price of a claim that pays S³? Use formula 20.29.

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Assume a stock price of S(0)= $45.00,r = 0.03,σ = 0.40,and dividend = 0.015.What is the price of a claim that pays S3 \sqrt[3]{S} ? Use formula 20.29.

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Define the term drift.

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A modification to the Brownian process that permits mean reversion is called:

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Assume the following: LN(S)and LN(Q)have a correlation coefficient of 0.40,S(0)= 60,Q(0)= 60,r = 0.05,σs = 0.30 σQ = 0.25,and dividend = 0.Using formula 20.39,what is the price of a claim that pays Q5 \sqrt[5]{Q} ?

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What is the relationship of the Sharpe ratios and risk premiums between stocks and options?

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Provide a definition of Brownian motion.

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A modification to the Brownian process in which the drift and volatility depend on the stock price is called:

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