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Financial Fragility with SAM?

Author

Listed:
  • Tim Landvoigt

    (University of Texas at Austin)

  • Stijn Van Nieuwerburgh

    (New York University)

  • Daniel Greenwald

    (MIT)

Abstract

Shared Appreciation Mortgages (SAMs) feature mortgage payments that adjust with house prices. Such mortgage contracts can stave off home owner default by providing payment relief in the wake of a large house price shock. SAMs have been hailed as an innovative solution that could prevent the next foreclosure crisis, act as a work-out tool during a crisis, and alleviate fiscal pressure during a downturn. They have inspired Fintech companies to offer home equity contracts. However, the home owner’s gains are the mortgage lender’s losses. We consider a model with financial intermediaries who channel savings from saver households to borrower households. The financial sector has limited risk bearing capacity. SAMs pass through more aggregate house price risk and lead to financial fragility when the shock happens in periods of low intermediary capital. We compare house prices,mortgage rates, the size of the mortgage sector, default and refinancing rates, as well as borrower and saver consumption between an economy with standard mortgage contracts and an economy with SAMs.

Suggested Citation

  • Tim Landvoigt & Stijn Van Nieuwerburgh & Daniel Greenwald, 2017. "Financial Fragility with SAM?," 2017 Meeting Papers 1525, Society for Economic Dynamics.
    • Handle: RePEc:red:sed017:1525
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    File URL: https://economicdynamics.org/meetpapers/2017/paper_1525.pdf
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    References listed on IDEAS

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    1. Adrian, Tobias & Boyarchenko, Nina, 2012. "Intermediary leverage cycles and financial stability," Staff Reports 567, Federal Reserve Bank of New York, revised 01 Feb 2015.
    2. Markus K. Brunnermeier & Yuliy Sannikov, 2014. "A Macroeconomic Model with a Financial Sector," American Economic Review, American Economic Association, vol. 104(2), pages 379-421, February.
    3. Andrew Caplin & Sewin Chan & Charles Freeman & Joseph Tracy, 1997. "Housing Partnerships: A New Approach to a Market at a Crossroads," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262032430, January.
    4. Epstein, Larry G & Zin, Stanley E, 1989. "Substitution, Risk Aversion, and the Temporal Behavior of Consumption and Asset Returns: A Theoretical Framework," Econometrica, Econometric Society, vol. 57(4), pages 937-969, July.
    5. Tim Landvoigt & Stijn Van Nieuwerburgh & Vadim Elenev, 2016. "A Macroeconomic Model with Financially Constrained Producers and Intermediaries," 2016 Meeting Papers 1224, Society for Economic Dynamics.
    6. repec:aea:aejpol:v:9:y:2017:i:4:p:167-91 is not listed on IDEAS
    7. repec:eee:jfinec:v:126:y:2017:i:1:p:1-35 is not listed on IDEAS
    8. He, Zhiguo & Kelly, Bryan & Manela, Asaf, 2017. "Intermediary asset pricing: New evidence from many asset classes," Journal of Financial Economics, Elsevier, vol. 126(1), pages 1-35.
    9. Gertler, Mark & Karadi, Peter, 2011. "A model of unconventional monetary policy," Journal of Monetary Economics, Elsevier, vol. 58(1), pages 17-34, January.
    10. Hull, Isaiah, 2015. "The macro-financial implications of house price-indexed mortgage contracts," Economics Letters, Elsevier, vol. 127(C), pages 81-85.
    11. Andreas Fuster & Paul S. Willen, 2017. "Payment Size, Negative Equity, and Mortgage Default," American Economic Journal: Economic Policy, American Economic Association, vol. 9(4), pages 167-191, November.
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    Blog mentions

    As found by EconAcademics.org, the blog aggregator for Economics research:
    1. Financial Fragility with SAM?
      by Christian Zimmermann in NEP-DGE blog on 2018-04-12 13:53:29

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    Cited by:

    1. Barney Hartman-Glaser & Benjamin Hebert, 2018. "The Insurance is the Lemon: Failing to Index Contracts," 2018 Meeting Papers 160, Society for Economic Dynamics.
    2. Alexei Tchistyi, 2018. "An Equilibrium Model of Housing and Mortgage Markets with State-Contingent Lending Contracts," 2018 Meeting Papers 244, Society for Economic Dynamics.

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