Exercise 24.1 Consider the Vasiek model, where we always assume that a > 0. (a) Solve...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Exercise 24.1 Consider the Vasiček model, where we always assume that a > 0. (a) Solve the Vasiček SDE explicitly, and determine the distribution of r(t). Hint: The distribution is Gaussian (why?), so it is enough to compute the expected value and the variance. (b) As too, the distribution of r(t) tends to a limiting distribution. Show that this is the Gaussian distribution N[b/a, o/√2a]. Thus we see that, in the limit, r will indeed oscillate around its mean reversion level b/a. (c) Now assume that r(0) is a stochastic variable, independent of the Wiener process W, and by definition having the Gaussian distribution obtained in (b). Show that this implies that r(t) has the limit distribution in (b), for all values of t. Thus we have found the stationary distribution for the Vasiček model. (d) Check that the density function of the limit distribution solves the time invariant Fokker-Planck equation, i.e. the Fokker-Planck equation with the-term equal to zero. Exercise 24.1 Consider the Vasiček model, where we always assume that a > 0. (a) Solve the Vasiček SDE explicitly, and determine the distribution of r(t). Hint: The distribution is Gaussian (why?), so it is enough to compute the expected value and the variance. (b) As too, the distribution of r(t) tends to a limiting distribution. Show that this is the Gaussian distribution N[b/a, o/√2a]. Thus we see that, in the limit, r will indeed oscillate around its mean reversion level b/a. (c) Now assume that r(0) is a stochastic variable, independent of the Wiener process W, and by definition having the Gaussian distribution obtained in (b). Show that this implies that r(t) has the limit distribution in (b), for all values of t. Thus we have found the stationary distribution for the Vasiček model. (d) Check that the density function of the limit distribution solves the time invariant Fokker-Planck equation, i.e. the Fokker-Planck equation with the-term equal to zero.
Expert Answer:
Answer rating: 100% (QA)
ANSWER a The Vasicek model is given by the following stochastic differential equation SDE drt ab rtdt dWt where rt represents the shortterm interest rate at time t a is the speed of mean reversion b i... View the full answer
Related Book For
Applied Regression Analysis and Other Multivariable Methods
ISBN: 978-1285051086
5th edition
Authors: David G. Kleinbaum, Lawrence L. Kupper, Azhar Nizam, Eli S. Rosenberg
Posted Date:
Students also viewed these finance questions
-
Planning is one of the most important management functions in any business. A front office managers first step in planning should involve determine the departments goals. Planning also includes...
-
The Crazy Eddie fraud may appear smaller and gentler than the massive billion-dollar frauds exposed in recent times, such as Bernie Madoffs Ponzi scheme, frauds in the subprime mortgage market, the...
-
List three specific parts of the Case Guide, Objectives and Strategy Section (See below) that you had the most difficulty understanding. Describe your current understanding of these parts. Provide...
-
Write an application to simulate the rolling of two dice. The application should use an object of class Random once to roll the first die and again to roll the second die. The sum of the two values...
-
A job order cost sheet for Renshaw Company is shown below. Instructions(a) On the basis of the foregoing data answer the following questions.(1) What was the balance in Work in Process Inventory on...
-
Factor. 2 y - 18yx+81x
-
What is the difference between a top-down approach to solving a problem and a bottom-up approach? In what kinds of situations might each be more appropriate?
-
Hilda Carr Associates surveys American eating habits. The companys accounts include Land, Buildings, Office equipment, and Communication equipment, with a separate accumulated depreciation account...
-
Agencies have been entrusted with a vast amount of power to carry out their missions. Social changes can quickly develop as a result of changes in laws or public policy. During times of rapid changes...
-
Gary Hudson was born and raised in Pensacola, Florida. He obtained his bachelors degree in business from Florida State University, where he enrolled in the NROTC (Naval Reserve Officers Training...
-
When measuring the event return in a Leveraged Recapitalization or a Leveraged Buyout, the event return is often over-estimated because changes in the beta of the stock are ignored. Explain exactly...
-
How do ethical leaders navigate ethical gray areas and moral ambiguity in rapidly evolving business landscapes, exercising moral courage and ethical reflexivity to confront ethical challenges,...
-
The following information is available for Baker Industries: Cost of goods manufactured Beginning finished goods inventory Ending finished goods inventory Required: Compute the cost of goods sold....
-
DEF Hedge Fund has long and short positions in its portfolio. Its objective is to have zero beta exposure in its portfolio. What type of strategy does it implement? Market neutral strategy Short bias...
-
Before they become eligible to receive CPP retirement benefits, Lian and Cheng have calculated that they will have an essential expense gap of $1,450 per month between age 55 and age 60. Assuming a...
-
How is the injection velocity calculated for an interplanetary flight to Mars?
-
Delphinus Funds Management has invested.In a 3-year US$100m BBB-rated corporate bond and has calculated the annual marginal probability of repayment in Year 1 is 98.7 percent, Year 2 is 97.7 percent...
-
Would you use the adjacency matrix structure or the adjacency list structure in each of the following cases? Justify your choice. a. The graph has 10,000 vertices and 20,000 edges, and it is...
-
Radial keratotomy is a type of refractive surgery in which radial incisions are made in a myopic (nearsighted) patient's cornea to reduce the person's myopia. Theoretically, the incisions allow the...
-
a. P(T13 ?) = .10 b. P(|T28| 2.05) = ?
-
Assume that the data involving the regression of VOTE (Y) on TVEXP (X) in Problem 5 in Chapter 5 came from congressional districts in New York. Now, suppose that researchers selected a second sample...
-
Tesco plc is one of the worlds largest food retailers. Fiscal year 2014 (the year ended February 28, 2015) was a rocky year for the retailer. The companys sales and margins had come under pressure as...
-
Exhibit P2 displays a selected set of financial ratios for the years 20152017 of three fashion retailers: USbased Gap, UK-based Next, and Japan-based Uniqlo (Fast Retailing). Using this set of...
-
In 2009, following the worldwide credit crisis, several US-based car manufacturers, such as Chrysler and General Motors, approached bankruptcy and needed to be bailed out by the US government and...
Study smarter with the SolutionInn App