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Conference Paper
The simple microeconomics of government-sponsored enterprises
Working Paper
The GSE implicit subsidy and value of government ambiguity
The housing-related government-sponsored enterprises Fannie Mae and Freddie Mac (the "GSEs") have an ambiguous relationship with the federal government. Most purchasers of the GSEs' debt securities believe that this debt is implicitly backed by the U.S. government despite the lack of a legal basis for such a belief. In this paper, I estimate how much GSE shareholders gain from this ambiguous government relationship. I find that (1) the federal government's implicit subsidy of Fannie Mae and Freddie Mac has resulted in a funding advantage for the GSEs over private sector institutions, (2) ...
Working Paper
The effect of automated underwriting on the profitability of mortgage securitization
Over the past two years, many mortgage market analysts have praised automated underwriting as a technological innovation that will lower the costs of processing mortgage applications. However, automated underwriting is unlikely to decrease processing costs uniformly for all mortgage applications. Instead, it makes identifying and processing low-risk mortgage borrowers less costly, but may not significantly lower the costs of identifying and processing relatively high-risk applicants. Our results suggest that after the one-time cost reduction produced by automated underwriting, the resulting ...
Working Paper
Federal Home Loan Bank advances and commercial bank portfolio composition
This paper considers the role of Federal Home Loan Bank (FHLB) advances in stabilizing their commercial bank members' residential mortgage lending activities. Our theoretical model shows that using mortgage-related membership criteria or requiring mortgage-related collateral does not ensure that FHLB advances will be put to use for stabilizing members' financing of housing. Using panel vector autoregression (VAR) techniques, we estimate recent dynamic responses of U.S. bank portfolios to FHLB advance shocks, bank lending shocks, and macroeconomic shocks. Our empirical findings suggest that ...
Working Paper
Optimal bank portfolios and the credit crunch
Journal Article
Is mortgage lending by savings associations special?
In this paper, we investigate whether elimination of the savings association charter might reduce lending to "nontraditional" (e.g., low-income) mortgage borrowers. We present a theoretical model of lender portfolio choice, in which nontraditional lenders have some market power and traditional lenders are price-takers in the mortgage market. The comparative statics indicate differences between nontraditional and traditional lenders in terms of their asset allocation responses to changes in borrower income and house prices. Empirical tests indicate the absence of such differences between ...
Working Paper
Is mortgage lending by savings associations special?
In this paper, we investigate whether elimination of the savings association charter might reduce lending to nontraditional mortgage borrowers. We present a theoretical model of lender portfolio choice, in which nontraditional lenders have some market power and traditional lenders are price-takers in the mortgage market. The comparative statics indicate differences between nontraditional and traditional lenders in terms of their asset allocation responses to changes in borrower income and house prices. Empirical tests indicate the absence of such differences between savings associations and ...
Conference Paper
Strategic niche and the profitability of banking