Debt service ratio
Interest plus repayments of the private non-financial sector as a share of its income, published quarterly by the BIS.
The debt service ratio measures how much of income goes to servicing debt at current interest rates and a standard maturity. Because it combines the stock of debt with the level of rates, it responds to both leverage and tightening. Drehmann and Juselius at the BIS found that a DSR more than one point above its own average has preceded banking crises with a lead of one to two years.