The Most Useful Leading Indicator Of The Global Boom-Bust Cycle

 | Sep 01, 2017 12:14AM ET

The long-term economic oscillations between boom and bust are caused by changes in the money-supply growth rate. It can therefore make sense to monitor such changes, but doing so requires knowing how to calculate the money supply. Unfortunately, most of the popular monetary aggregates are not useful in this regard because they either include quantities that aren’t money or omit quantities that are money.

What “Austrian” economists refer to as TMS (True Money Supply) is the most accurate monetary aggregate. Whereas popular measures such as M2, M3 and MZM contain credit instruments, TMS only contains money. Specifically, TMS comprises currency (notes and coins), checkable deposits and savings deposits.

The following chart shows the year-over-year TMS growth rate (the monetary inflation rate) in the US. It has fallen sharply over the past 8 months — from around 11% to around 5% — and is now at its lowest level since 2008.