This paper estimates both parametric and non-parametric proportional hazards models for a subset of Canadian mortgage-backed security data. The estimated parametric hazard function is then used to drive exogenous prepayments within an arbitrage-free model of the term structure of interest rates. Theoretical prices as well as option-adjusted spreads (OAS) are obtained for three different mortgage-backed securities using a Monte-Carlo simulation. Though no formal test is done to compare the ability of the different hazard models to explain observed market prices, the non-parametric baseline hazard is more consistent with the age-dependent prepayment provisions typical of most mortgage contracts in Canada.

Thesis (Ph. D.)--University of Washington, 1997. / Vita. Includes bibliographical references (leaves [47]-52).

This paper estimates both parametric and non-parametric proportional hazards models for a subset of Canadian mortgage-backed security data. The estimated parametric hazard function is then used to drive exogenous prepayments within an arbitrage-free model of the term structure of interest rates. Theoretical prices as well as option-adjusted spreads (OAS) are obtained for three different mortgage-backed securities using a Monte-Carlo simulation. Though no formal test is done to compare the ability of the different hazard models to explain observed market prices, the non-parametric baseline hazard is more consistent with the age-dependent prepayment provisions typical of most mortgage contracts in Canada. / Business, Sauder School of / Real Estate Division / Graduate

by Lam Suen, Tang Mun-suet. / Thesis (M.B.A.)--Chinese University of Hong Kong, 1995. / Includes bibliographical references (leaves 60-61). / ABSTRACT --- p.iii / TABLE OF CONTENT --- p.v / LIST OF CHARTS/TABLES --- p.vii / CHAPTER / Chapter I. --- INTRODUCTION --- p.1 / Chapter II. --- INTRODUCTION OF MORTGAGE-BACKED SECURITIES --- p.6 / What is Securitization --- p.6 / Types of Mortgage-backed Securities --- p.8 / Mortgage Pass-through Securities --- p.8 / Collateralized Mortgage Obligations --- p.9 / Stripped Mortgage-backed Securities --- p.11 / Chapter III. --- BENEFITS OF SECURITIZATION --- p.14 / Benefits to Issuers --- p.14 / Diversification of Funding Sources and Increased Liquidity --- p.14 / Cost Effective Source of Funds --- p.15 / Efficient Use of Capital --- p.15 / Rapid Portfolio Growth --- p.15 / Better Asset/Liability Management --- p.16 / Earning Enhancement --- p.16 / Benefits to Investors --- p.16 / Benefits to Borrowers --- p.17 / Implication of Securitization for Financial Market --- p.17 / Chapter IV. --- MODELING AND VALUATION OF MORTGAGE-BACKED SECURITIE& --- p.19 / Static Cash Flow Yield (SCFY) Analysis --- p.20 / Advantages and Limitations --- p.21 / Total Rate of return Scenario Analysis (SA) --- p.22 / Advantages and Limitations --- p.23 / Option Adjusted Spreads (OAS) --- p.24 / Advantages and Limitations --- p.26 / Chapter V. --- THE MORTGAGE-BACKED SECURITIES MARKET IN US --- p.27 / U.S. Capital Market --- p.27 / Market Structureof Mortgage-backed Securities in US --- p.28 / Mortgage Originators --- p.28 / Mortgage-backed Securities Issuers --- p.29 / Derivatives of Mortgage-backed Securities --- p.32 / Secondary Mortgage-backed Securities Market --- p.33 / Chapter VI. --- THE HONG KONG MORTGAGE-BACKED SECURITIES MARKET --- p.35 / Mortgage Pool --- p.35 / Characteristics of residential mortgage loans in Hong Kong --- p.35 / Lending policy of authorized institutions since 1989 --- p.37 / Development Of MBS --- p.39 / "Four Mortgage-backed, Bond Sales" --- p.40 / "Bank Of America (Asia) - May, 1994" --- p.40 / "Citibank's Homes-1 - July, 1994" --- p.41 / "Cheung Kong Holdings - September, 1994" --- p.42 / "Standard Chartered Bank's MARS - December, 1994" --- p.44 / Chapter VII. --- DISCUSSION ON HONG KONG MORTGAGED-BACKED SECURITIES MARKET --- p.46 / "Why is the Mortgage-backed, Securities Market Less Important in Hong Kong" --- p.46 / Uncertain Political Environment of Hong Kong --- p.46 / Hong Kong Residential Property Price Inflation --- p.48 / Limited Liquidity --- p.49 / Few Securities with Credit Ratings --- p.49 / Risks of Mortgage-backed Securities --- p.49 / Chapter VIII. --- RECOMMENDATIONS AND FUTURE OF HONG KONG MORTGAGE-BACKED SECURITIES MARKET --- p.55 / Recommendations for Hong Kong Mortgage-backed Securities Market --- p.55 / Credit Enhancement of Securitized Products --- p.55 / Better Market Infrastructure --- p.56 / Liquid Bond Markets --- p.57 / The Future Mortgage-backed Securities Market in Hong Kong --- p.58 / BIBLIOGRAPHY --- p.60

To value any fixed income security one needs to evaluate the discounted expected cash flows according to an arbitrage free interest rate model. In the case of mortgage-backed securities the future cash flows are uncertain due to mortgagors exercise of their prepayment options. The present project considers prepayments which result from interest rate dependent complete refinancing of mortgages in a pool. The rate of refinancing is modeled as an arbitrary, user defined function of current and past interest rates. This enables the inclusion of refinancing rates that depend on not only on the current level of interest rates but also on the trend of the interest rates and that may also exhibit burnout effects due to past periods of low interest rates. The resulting cash flows depend on the entire past of the path that the interest rates took to get to the current level. The Black-Derman-Toy arbitrage free binomial tree is used to model the underlying interest rates. This is a single-factor market price consistent model which also allows the specification of the observed volatilities. Monte Carlo methodology is used to simulate random paths in the interest rate tree to evaluate the cash flows along the path. A computer program written in MAPLE implements the entire process.

by Lo Kwok Cheong, Tang Wai Hing. / Thesis (M.B.A.)--Chinese University of Hong Kong, 1997. / Includes bibliographical references (leaves 97-99). / ABSTRACT --- p.ii / TABLE OF CONTENT --- p.iv / LIST OF CHARTS/TABLES --- p.vii / Chapter I. --- INTRODUCTION --- p.1 / Securitization and Secondary Mortgage Market --- p.1 / Securitization --- p.1 / Secondary Mortgage Market --- p.3 / Reasons for Mortgage Securitization --- p.4 / Types of Mortgage Backed Securities --- p.7 / Mortgage Pass-Through Securities --- p.7 / Mortgage-Backed Bonds --- p.8 / Mortgage Pay-Through Bonds --- p.8 / Collateralised Mortgage Obligations ( CMOs) --- p.9 / Stripped Mortgage-backed Securities ( SMBS ) --- p.11 / Chapter II. --- MBS MARKET EXPERIENCE IN OTHER COUNTRIES --- p.14 / United States --- p.14 / Rise of Securitization in US Market --- p.20 / MBS Market Development in United States --- p.22 / Key Success Factors for MBS Development in US --- p.27 / United Kingdom --- p.28 / MBS Market Development in UK --- p.29 / Credit Enhancement and Credit Rating --- p.32 / Legal and Regulatory Framework --- p.32 / Future Development --- p.34 / Australia --- p.37 / MBS Market Development in Australia --- p.37 / Credit Enhancement --- p.39 / Legal and Regulatory Framework --- p.40 / Future Development --- p.41 / Chapter III. --- MORTGAGE MARKET IN HONG KONG --- p.43 / Primary Mortgage Market condition in Hong Kong --- p.43 / Latest Residential Mortgage Conditions --- p.46 / Mortgage Securitization experience in Hong Kong --- p.50 / Chapter IV. --- HONG KONG MONETARY AUTHORITY'S MBS MARKET DEVELOPMENT PLAN --- p.51 / Survey on Primary Market by HKMA --- p.51 / Findings of the Survey --- p.52 / Implications of the Survey Findings --- p.53 / Reliability of the Survey Findings --- p.55 / The Mortgage Corporation Approach --- p.57 / Mortgage Corporation Proposal --- p.58 / Projection of the shortfall in mortgage funds --- p.60 / Impact on banks' mortgage business --- p.61 / Impact on the property sector --- p.62 / Impact on the Government --- p.62 / Corporate structure and the involvement of the HKMA --- p.63 / Issuance of debt securities by the mortgage corporation --- p.64 / Chapter V. --- IMPLICATIONS OF MBS DEVELOPMENT TO HONG KONG --- p.65 / Property Market --- p.65 / Banking Sector --- p.66 / Consumers --- p.69 / Debt Market --- p.69 / Chapter VI. --- FACTORS INFLUENCING ADOPTION OF MBS IN HONG KONG --- p.72 / Asset Quality --- p.72 / Quality of underlying mortgage pool --- p.73 / Credit enhancement --- p.74 / Prepayment Risk --- p.75 / Liquidity --- p.75 / Market Size --- p.76 / Standardisation --- p.77 / Credit Rating --- p.78 / Transparency --- p.78 / Chapter VII. --- RESEARCH DESIGN AND EMPIRICAL FINDINGS --- p.79 / Objective --- p.79 / Target Respondents Sampling --- p.80 / Survey Design --- p.80 / Empirical Findings --- p.82 / Chapter VIII. --- RECOMMENDATIONS --- p.89 / Simplicity --- p.89 / Credit Rating --- p.90 / Standardisation --- p.92 / Supporting Infrastructure --- p.93 / Secondary Market Liquidity --- p.94 / Marketing Effort --- p.94 / Chapter IX. --- SUMMARY AND CONCLUSIONS --- p.95 / BIBLIOGRAPHY --- p.97 / Books --- p.97 / Reports --- p.97 / Periodicals --- p.97 / Internet Homepages --- p.98 / APPENDIX --- p.100

Má diplomová práce se zabývá Mortgage Backed Securities, což jsou cenné papíry kryté hypotékami. V první části práce jsou MBS zobrazeny jako část skupiny strukturovaných aktiv. Je zde provedeno jejich srovnání s ostatními sekuritizačními instrumenty z hlediska struktury a vlastností a také je znázorněno jaká část jim připadá na sekuritizačním trhu. V další části je věnován důraz na podkladová aktiva MBS, tedy hypotéky. Důkladně je rozebrán americký hypoteční trh, druhy a objem poskytnutých půjček a jejich specifika. Jsou popsány polovládní agentury specifické pro americký trh, které napomáhají rozvoji hypotečního trhu. Hlavní část práce je věnována popisu tvorby Mortgage Backed Security, značná část se zabývá jednotlivými druhy a charakteristikami MBS. Je zde popsáno, jaký druh je vhodný pro určité typy investorů. Důraz je kladen na riziko předčasného splacení, tedy riziko spojené pouze s hypotéčními produkty. Závěrečná kapitola se věnuje jednotlivým typům MBS ze statistického hlediska. Je znázorněn jejich celkový objem na dvou hlavních trzích, v USA a Evropě, dále jsou popsány počty emisí jednotlivých druhů a další zajímavé statistické údaje spojené s MBS trhy.

Thesis (M. Phil.)--University of Hong Kong, 2001. / Includes bibliographical references (leaves 71-76).

Thesis (M.S.)--Worcester Polytechnic Institute. / Keywords: portfolio risk decomposition; principal components regression; principal components analysis; mortgage-backed securities. Includes bibliographical references (p. 88-89).

Thesis (M.S.)--Worcester Polytechnic Institute. / Keywords: Mortgage-backed securities. Includes bibliographical references (p. 56).