To manage procyclical credit flows in real estate markets, macroprudential authorities implement asset-level lending constraints, specifically Loan-to-Value (LTV) caps and Debt-to-Income (DTI) limits.
The Mechanics of LTV and DTI Boundaries
  Control Constraint  |   Primary Asset Target Area   |   Financial Stability Outcome Focus
----------------------+-------------------------------+-----------------------------------------
  LTV Frameworks      | Limits credit size per asset value| Restricts losses for lenders if defaults spike
  DTI Restraints      | Ties credit size to income data | Limits aggregate household debt burdens

  • LTV Caps: Restrict the maximum size of a mortgage loan relative to the appraised value of the property, forcing buyers to provide a larger cash down payment and insulating lenders from asset price corrections.
  • DTI Limits: Lock maximum credit sizes to the borrower’s verified annual income, preventing households from overextending themselves during low interest rate cycles and stabilizing mortgage default rates.

 
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