Servicers and Mortgage-Backed Securities Default: Theory and Evidence

2010 ◽  
Author(s):  
Brent W. Ambrose ◽  
Anthony B. Sanders ◽  
Abdullah Yavas
Keyword(s):  
Default Theory ◽  
Mortgage Backed Securities

Servicers and Mortgage-Backed Securities Default: Theory and Evidence

2015 ◽  
Vol 44 (2) ◽  
pp. 462-489 ◽  
Author(s):  
Brent W. Ambrose ◽  
Anthony B. Sanders ◽  
Abdullah Yavas
Keyword(s):  
Default Theory ◽  
Mortgage Backed Securities

Valuing Canadian Mortgage-Backed Securities

1989 ◽  
Vol 45 (3) ◽  
pp. 55-60 ◽  
Author(s):  
Phelim P. Boyle
Keyword(s):  
Mortgage Backed Securities

Incentives and Mortgage-Backed Securities Ratings

2009 ◽  
Author(s):  
Adam B. Ashcraft ◽  
Paul Goldsmith-Pinkham ◽  
James I. Vickery
Keyword(s):  
Mortgage Backed Securities

scholarly journals More on Modal Aspects of Default Logic1

1992 ◽  
Vol 17 (1-2) ◽  
pp. 99-116
Author(s):  
V. Wiktor Marek ◽  
Miroslaw Truszczynski
Keyword(s):  
Modal Logic ◽  
Default Logic ◽  
Nonmonotonic Logic ◽  
Default Reasoning ◽  
Default Theory ◽  
Autoepistemic Logic ◽  
The Relationship ◽  
Natural Classes ◽  
Weak Extension

Investigations of default logic have been so far mostly concerned with the notion of an extension of a default theory. It turns out, however, that default logic is much richer. Namely, there are other natural classes of objects that might be associated with default reasoning. We study two such classes of objects with emphasis on their relations with modal nonmonotonic formalisms. First, we introduce the concept of a weak extension and study its properties. It has long been suspected that there are close connections between default and autoepistemic logics. The notion of weak extension allows us to precisely describe the relationship between these two formalisms. In particular, we show that default logic with weak extensions is essentially equivalent to autoepistemic logic, that is, nonmonotonic logic KD45. In the paper we also study the notion of a set of formulas closed under a default theory. These objects are shown to correspond to stable theories and to modal logic S5. In particular, we show that skeptical reasoning with sets closed under default theories is closely related with provability in S5. As an application of our results we determine the complexity of reasoning with weak extensions and sets closed under default theories.

Sign in / Sign up

Export Citation Format

Share Document