It's interesting that he uses M2. Back in the 1970s, monetarists used M2 as a forecaster for economic growth. For consumer prices, M1 was used. The graph of the M1 money supply gives a different picture. Here's a graph, from the St. Louis Fed, showing the % changes from a year ago of M2 and M1:
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Both measures were actually discredited in the 1980s and '90s because the inflation rates no longer tracked either. The demand for money shifted.
[Note: The M2 graph begins at 1980. The M1 graph begins at 1975.]
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