Federal Reserve monetary policy has enormous effects on the behavior of the business cycle. These business-cycle effects, in turn, affect the political environment. For example, the surge in consumer price inflation in 2021-22 appeared to be an important factor in the 2024 presidential election. In previous commentaries, I have argued that Fed monetary policy in 2020-21 exacerbated the inflationary environment in 2021-23. In my July 8, 2025 commentary “Fed Operating Behavior – Don’t Let the Perfect Be the Enemy of the Good”, I argued that the Fed should act so as to have the sum of the monetary base plus loans and securities on the books of depository institutions (thin-air credit) grow at a constant annual rate of 5 percent. Would the business cycle be eliminated under these circumstances? No. Would the amplitude of business cycles be damped? Yes. Could the Fed legitimately be criticized for political bias if it maintained thin-air credit growth at 5% per annum, regardless of what political party held the presidency? No. Would the Fed lose its mystique? Yes.
Let’s take a trip down memory lane to see how Fed monetary policy has exacerbated the business cycle. The Fed opened its doors for business in 1914, the same year that World War I started. Although the US did not enter WWI until April 1917, we were supplying war materiel and foodstuffs to the Allies prior to our entry. Plotted in Chart 1 are the year-over-year percent changes in the annual average M2 money supply (annual data for thin-air credit did not become available until 1946) and the annual average CPI. Growth in the M2 money supply accelerated to 8.5% in 1915 from 3.4% in 1914. In the six years ended 1920, M2 grew at a compound annual rate of 11.9%. And you know what else grew rapidly in these six years? The CPI. In the six years ended 1920, the CPI grew at a compound annual rate of 12.2%. So, right out of the box, the Fed was aiding and abetting consumer price inflation.

