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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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    1. Financial Fragility with SAM?
      by Christian Zimmermann in NEP-DGE blog on 2018-04-12 13:53:29

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    2. Adam M Guren & Timothy J McQuade, 2020. "How Do Foreclosures Exacerbate Housing Downturns?," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 87(3), pages 1331-1364.
    3. Stefano Colonnello & Mariela Dal Borgo, 2024. "Raising Household Leverage: Evidence from Co-Financed Mortgages," Working Papers 2024: 01, Department of Economics, University of Venice "Ca' Foscari".
    4. Piskorski, Tomasz & Seru, Amit, 2021. "Debt relief and slow recovery: A decade after Lehman," Journal of Financial Economics, Elsevier, vol. 141(3), pages 1036-1059.
    5. Adam M. Guren & Arvind Krishnamurthy & Timothy J. Mcquade, 2021. "Mortgage Design in an Equilibrium Model of the Housing Market," Journal of Finance, American Finance Association, vol. 76(1), pages 113-168, February.
    6. John Y. Campbell & Nuno Clara & João F. Cocco, 2021. "Structuring Mortgages for Macroeconomic Stability," Journal of Finance, American Finance Association, vol. 76(5), pages 2525-2576, October.
    7. Tomasz Piskorski & Alexei Tchistyi, 2017. "An Equilibrium Model of Housing and Mortgage Markets with State-Contingent Lending Contracts," NBER Working Papers 23452, National Bureau of Economic Research, Inc.
    8. Matteo Benetton & Philippe Bracke & João F Cocco & Nicola Garbarinoifo, 2022. "Housing Consumption and Investment: Evidence from Shared Equity Mortgages," Review of Financial Studies, Society for Financial Studies, vol. 35(8), pages 3525-3573.
    9. Wong, Francis & Kermani, Amir, 2022. "Racial Disparities in Housing Returns," VfS Annual Conference 2022 (Basel): Big Data in Economics 264099, Verein für Socialpolitik / German Economic Association.
    10. 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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