Finite difference approach to steady state problems arising from mortgage and option pricing

Dejun Xie, Jin Zheng, Nan Zhang, Kun Chen, Huaiqing Wang

Research output: Chapter in Book or Report/Conference proceedingConference Proceedingpeer-review

Abstract

Motivated by mortgage valuation, the paper proposes a finite difference approach to solve a class of free boundary problems which may be useful for option pricing in general. Given certain financially meaningful conditions, a mortgage borrower wishes to find the level of market interest rate at which it is optimal to make prepayment. The problem is an analog of finding the optimal level of stock price for early exercise in American put. Mathematically they both can be formulated as free boundary problems. In this paper an algorithm based on the finite difference scheme is designed to find the numerical solution to the steady state of such problems. The approach is calibrated with the perpetual American put option whose solution is explicitly known. The efficiency of the algorithm is tested by numerical simulations.

Original languageEnglish
Title of host publicationMultimedia and Ubiquitous Engineering
EditorsShu-Ching Chen, James J. Park, Neil Y. Yen, Joon-Min Gil
PublisherSpringer Verlag
Pages429-435
Number of pages7
ISBN (Electronic)9783642548994
DOIs
Publication statusPublished - 2014
EventFTRA 8th International Conference on Multimedia and Ubiquitous Engineering, MUE 2014 - Zhangjiajie, China
Duration: 28 May 201431 May 2014

Publication series

NameLecture Notes in Electrical Engineering
Volume308
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

ConferenceFTRA 8th International Conference on Multimedia and Ubiquitous Engineering, MUE 2014
Country/TerritoryChina
CityZhangjiajie
Period28/05/1431/05/14

Keywords

  • Finite Difference
  • Mortgage Valuation
  • Numerical Methods
  • Option Pricing

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