Fixed versus floating: vulnerability to rising interest rates

Abstract

▀ Looking at different economies' exposure to fixed‐ and floating‐rate private‐sector debt reveals how vulnerable they could be to rising interest rates. Our analysis finds that Hong Kong, Sweden, China and Australia are potentially most exposed via floating rates to rising debt service costs. A 150bp rise in rates would also push several other countries' debt service ratios above the peaks of 2008. Less vulnerable economies include the US and Germany. ▀ High levels of floating‐rate debt imply a large and rapid pass‐through of rising interest rates to firms and households, with negative consequences. Exposure to floating‐rate debt as a share of GDP varies greatly: the highest levels are in Hong Kong, China, Sweden, Australia and Spain, with the lowest levels in the US, France and Germany. ▀ Growing shares of fixed‐rate housing debt in the US, Eurozone and UK mean the impact of higher interest rates may be less severe than a decade ago. Private deleveraging in countries such as the US, UK and Spain could also soften the impact. ▀ A rise of 100bp in short‐term interest rates would raise the debt service ratio after one year by around 2.5% of GDP in Hong Kong, with increases of 1.5–1.7% of GDP in Sweden, China and Australia. The smallest effects would be in the US and Germany. ▀ A 100–150bp rate rise would push debt service ratios in China, Hong Kong, Canada, France and the Netherlands well above their peaks of a decade ago. A similar rate rise would take debt service ratios in Sweden, South Korea and Australia close to, or above, previous peaks. ▀ The distribution of debt within economies, which our analysis does not cover, is also important. For example, there is some evidence that the US corporate sector has a high concentration of debt among borrowers with weak finances. Countries that are highly vulnerable to interest rate rises may see their central banks normalise policy rates more slowly than they otherwise would.