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Report
TBA trading and liquidity in the agency MBS market
Most mortgages in the United States are securitized through the agency mortgage-backed-securities (MBS) market. These securities are generally traded on a ?to-be-announced,? or TBA, basis. This trading convention significantly improves agency MBS liquidity, leading to lower borrowing costs for households. Evaluation of potential reforms to the U.S. housing finance system should take into account the effects of those reforms on the operation of the TBA market.
Journal Article
TBA trading and liquidity in the agency MBS market
Mortgage-backed securities in the United States are generally traded on a ?to-be-announced,? or TBA, basis. The key feature of a TBA trade is that the identity of the securities to be delivered to the buyer is not specified exactly at the time of the trade, facilitating a liquid forward market. This article describes the main features of the TBA market. It also presents evidence on the liquidity of this market during the financial crisis period. Using variation in TBA eligibility rules, the authors? estimates suggest that the liquidity benefits associated with the TBA market are of the order ...
Report
A private lender cooperative model for residential mortgage finance
We describe a set of six design principles for the reorganization of the U.S. housing finance system and apply them to one model for replacing Fannie Mae and Freddie Mac that has so far received frequent mention but little sustained analysis ? the lender cooperative utility. We discuss the pros and cons of such a model and propose a method for organizing participation in a mutual loss pool and an explicit, priced government insurance mechanism. We also discuss how these principles and this model are consistent with preserving the ?to-be-announced,? or TBA, market ? particularly if the ...
Report
Payment changes and default risk: theimpact of refinancing on expected credit losses
This paper analyzes the relationship between changes in borrowers' monthly mortgage payments and future credit performance. This relationship is important for the design of an internal refinance program such as the Home Affordable Refinance Program (HARP). We use a competing risk model to estimate the sensitivity of default risk to downward adjustments of borrowers' monthly mortgage payments for a large sample of prime adjustable-rate mortgages. Applying a 26 percent average monthly payment reduction that we estimate would result from refinancing under HARP, we find that the cumulative ...
Report
The capital structure and governance of a mortgage securitization utility
We explore the capital structure and governance of a mortgage-insuring securitization utility operating with government reinsurance for systemic or ?tail? risk. The structure we propose for the replacement of the GSEs focuses on aligning incentives for appropriate pricing and transfer of mortgage risks across the private sector and between the private sector and the government. We present the justification and mechanics of a vintage-based capital structure, and assess the components of the mortgage guarantee fee, whose size we find is most sensitive to the required capital ratio and the ...