The Velocity of Money

Key Takeaways

1. 1Velocity equals nominal GDP divided by the money supply - each dollar's annual spending power, in one number
2. 2High velocity means money circulates fast - the same supply supports more spending because dollars don't sit idle
3. 3Low velocity means money sits still - households and firms hold cash longer, so more money is needed to support the same spending
4. 4Velocity rises with confidence and falls in crises - recessions and pandemics produce sharp velocity collapses, reopenings produce surges
5. 5Inflation depends on money growth plus velocity growth, not money growth alone - a 5% rise in M with a 3% fall in V leaves only ~2% net push on prices
6. 62008–2015 quantitative easing showed velocity's power - the monetary base expanded dramatically, but inflation stayed muted because velocity collapsed in parallel
7. 7The equation of exchange (MV = PQ) is the cleanest way to see it - money supply and velocity together determine the nominal economy, not either alone