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BPEA Article

Beyond Leveraged Losses: The Balance Sheet Effects of the Home Price Downturn

Abstract

This paper quantifies the impact of declining home prices,
increasing mortgage credit losses, and the associated reduction in credit supply
on real GDP growth. Using a state-level panel analysis, I first estimate the link
between home prices and foreclosures. I estimate that an additional 15 percent
home price decline from mid-2008 levels would be consistent with total
residential mortgage credit losses over 2007–12 of $750 billion, although
the uncertainty is high. I then gauge the impact of such losses on the supply
of credit from banks, asset-backed security markets, and the governmentsponsored
enterprises, and in turn on real GDP growth. In the central scenario,
the crisis could lower real GDP growth in 2008 and 2009 by an average of
2.6 percentage points per year. This estimate excludes both adverse multiplier
effects (labor market deterioration, global trade repercussions, and credit quality
feedback) and policy offsets.

Author

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