With inflation surging across the world – even above 10% in many countries – central banks have had little choice but to tighten monetary policy sharply. By raising interest rates by several hundred basis points in 12 months, the tightening so far has been dramatic, if not unprecedented, by the standards of modern economic history.
Higher interest rates are intended to slow demand growth to achieve a better balance between the supply and demand for goods and services. Since the peak effect of monetary tightening on demand is felt with a lag of perhaps three to six quarters, it is inherently difficult for central banks to calibrate how much to raise interest rates. Given the massive increases in interest rates, the risk that central banks have tightened too much, causing a deep recession, is obvious.
To assess that risk, it is useful to look at the behaviour of Leading Indicators (LI). The OECD computes leading indicators for a number of advanced and emerging economies (see below). These leading indicators average 100 and anticipate year-over-year GDP growth in 6-9 months’ time; values above 100 indicate expected expansion and values below 100 indicate expected contraction.