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Discussion Paper
Measuring the Financial Stability Real Interest Rate, r**
Comparing our financial stability real interest rate, r** (“r-double-star”) with the prevailing real interest rate gives a measure of how vulnerable the economy is to financial instability. In this post, we first explain how r** can be measured, and then discuss its evolution over the last fifty years and how to interpret the recent banking turmoil within this framework.
Report
The Financial (In)Stability Real Interest Rate, R**
We build a macro-finance model with an occasionally binding financing constraint where real interest rates have opposite effects on current and future financial stability, with the contemporaneous impact driven by valuation effects (akin to those triggering the 2023 banking turmoil) and the future impact driven by reach-for-yield by intermediaries. We use this model to illustrate the concept of the financial stability interest rate, r**, which we propose as a quantitative summary statistic for financial vulnerabilities. We provide a measure of r** for the U.S. economy and discuss its ...
Working Paper
The Financial (In)Stability Real Interest Rate, R**
We introduce the concept of financial stability real interest rate using a macroeconomic banking model with an occasionally binding financing constraint as in Gertler and Kiyotaki (2010). The financial stability interest rate, r**, is the threshold interest rate that triggers the constraint being binding. Increasing imbalances in the financial sector measured by an increase in leverage are accompanied by a lower threshold that could trigger financial instability events. We also construct a theoretical implied financial condition index and show how it is related to the gap between the natural ...