The valuation of callable defaultable bonds
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Tipo de documento: | Dissertação |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10071/4337 |
Resumo: | The present work studies the valuation of callable defaultable bonds, when firm value and interest rate are both stochastics. When valuing long term contingent claims which underlying asset is a bond, it is important to assume endogenous bankruptcy risk since, in the long run, firm value and interest rate might not walk together. The firm value is described by an one-factor geometric Brownian motion and the interest rate follows an one-factor square root process. This study presents sensitivity analysis on yield spreads and option values with variations on host bond prices and interest rate volatilities. Furthermore, three different assumptions to model the interest rate behaviour (the CIR model, the Vasicek model and a constant interest rate) will be compared, in order to find significant differences and try to understand which one fits better to the theory. |
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The valuation of callable defaultable bondsCallable bondsStochastic interest rateCIR modelBlack-Scholes-Merton modelObrigações CallableTaxa de juro estocásticaModelo CIRModelo Black-Scholes-MertonThe present work studies the valuation of callable defaultable bonds, when firm value and interest rate are both stochastics. When valuing long term contingent claims which underlying asset is a bond, it is important to assume endogenous bankruptcy risk since, in the long run, firm value and interest rate might not walk together. The firm value is described by an one-factor geometric Brownian motion and the interest rate follows an one-factor square root process. This study presents sensitivity analysis on yield spreads and option values with variations on host bond prices and interest rate volatilities. Furthermore, three different assumptions to model the interest rate behaviour (the CIR model, the Vasicek model and a constant interest rate) will be compared, in order to find significant differences and try to understand which one fits better to the theory.O presente trabalho debruça-se sobre a avaliação de obrigações callable com risco de falência, quando o valor da empresa e a taxa de juro são ambos estocásticos. Quando se avalia direitos contingentes de longo prazo cujo activo subjacente é uma obrigação, torna-se importante considerar o risco de falência como variável endógena visto que, no longo prazo, o valor da empresa e a taxa de juro podem não ter o mesmo comportamento. O valor da empresa é explicado por um movimento Browniano geométrico de um só factor e a taxa de juro segue um processo de raíz quadrada, também de um só factor. Este estudo apresenta análises de sensibilidade do spread das yields e do valor das opções, para variações no preço da obrigação subjacente e na volatilidade da taxa de juro. Serão também comparados três pressupostos diferentes para o comportamento da taxa de juro (modelo CIR, modelo Vasicek e taxa de juro constante), de forma a encontrar diferenças relevantes e perceber qual deles se adequa melhor à teoria.2013-01-10T10:13:36Z2011-01-01T00:00:00Z20112011-04info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfapplication/octet-streamhttp://hdl.handle.net/10071/4337engHilebrand, Williaminfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-09T17:57:28Zoai:repositorio.iscte-iul.pt:10071/4337Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T22:29:39.316197Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
The valuation of callable defaultable bonds |
title |
The valuation of callable defaultable bonds |
spellingShingle |
The valuation of callable defaultable bonds Hilebrand, William Callable bonds Stochastic interest rate CIR model Black-Scholes-Merton model Obrigações Callable Taxa de juro estocástica Modelo CIR Modelo Black-Scholes-Merton |
title_short |
The valuation of callable defaultable bonds |
title_full |
The valuation of callable defaultable bonds |
title_fullStr |
The valuation of callable defaultable bonds |
title_full_unstemmed |
The valuation of callable defaultable bonds |
title_sort |
The valuation of callable defaultable bonds |
author |
Hilebrand, William |
author_facet |
Hilebrand, William |
author_role |
author |
dc.contributor.author.fl_str_mv |
Hilebrand, William |
dc.subject.por.fl_str_mv |
Callable bonds Stochastic interest rate CIR model Black-Scholes-Merton model Obrigações Callable Taxa de juro estocástica Modelo CIR Modelo Black-Scholes-Merton |
topic |
Callable bonds Stochastic interest rate CIR model Black-Scholes-Merton model Obrigações Callable Taxa de juro estocástica Modelo CIR Modelo Black-Scholes-Merton |
description |
The present work studies the valuation of callable defaultable bonds, when firm value and interest rate are both stochastics. When valuing long term contingent claims which underlying asset is a bond, it is important to assume endogenous bankruptcy risk since, in the long run, firm value and interest rate might not walk together. The firm value is described by an one-factor geometric Brownian motion and the interest rate follows an one-factor square root process. This study presents sensitivity analysis on yield spreads and option values with variations on host bond prices and interest rate volatilities. Furthermore, three different assumptions to model the interest rate behaviour (the CIR model, the Vasicek model and a constant interest rate) will be compared, in order to find significant differences and try to understand which one fits better to the theory. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-01-01T00:00:00Z 2011 2011-04 2013-01-10T10:13:36Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10071/4337 |
url |
http://hdl.handle.net/10071/4337 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/octet-stream |
dc.source.none.fl_str_mv |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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