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Income Risk and Household Debt with Endogenous Collateral Constraints


  • Thomas Hintermaier

    () (Economics and Finance Institute for Advanced Studies (IHS))

  • Winfried Koeniger


We present a heterogeneous-agent model with incomplete markets, in which household debt need to be collateralized by durable holdings and the lowest attainable labor income. Labor income is risky and households decide how much non-durables to consume, on their position of secured debt and the durable stock. Consumers value durables not only as collateral for their debt but also derive utility from their durable stock. We show that an interest spread between the borrowing and lending rate implies local convexities in the policy functions for non-durable consumption and especially durable holdings which are important quantitatively. Moreover, an increase in income risk decreases average household debt because of the buffer-stock saving motive

Suggested Citation

  • Thomas Hintermaier & Winfried Koeniger, 2006. "Income Risk and Household Debt with Endogenous Collateral Constraints," 2006 Meeting Papers 729, Society for Economic Dynamics.
  • Handle: RePEc:red:sed006:729

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    household debt; durables; collateral constraints;

    JEL classification:

    • E21 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Consumption; Saving; Wealth
    • D91 - Microeconomics - - Micro-Based Behavioral Economics - - - Role and Effects of Psychological, Emotional, Social, and Cognitive Factors on Decision Making


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