The return of monetarism?

Episode Summary

Executive Summary: The episode explains monetarism as the idea that money supply and its circulation influence inflation, then asks why the concept is resurfacing at the Fed. The hosts argue that monetarism failed mainly as a practical model because money and velocity are hard to measure, but it may still be useful for understanding how different forms of money affect prices and growth—especially after COVID-era stimulus.

Main Topics: What monetarism means (Priority: 5/5): Brendan Greeley reframes monetarism as the relationship between money in the economy, how fast it circulates, and inflation: more money chasing the same goods tends to raise prices. Why monetarism is resurfacing (Priority: 5/5): The idea is being reconsidered because Fed chair Kevin Warsh has launched task forces and appointed serious economists, creating an opening for policy rethinks. The historical rise and fall of monetarism (Priority: 4/5): The discussion traces monetarism from 16th-century Spain’s silver influx, to Milton Friedman and Anna Schwartz’s monetary history, to Paul Volcker’s anti-inflation fight, and then to its loss of favor at the Fed. Measurement problems (Priority: 5/5): The core critique is that monetarism works as an intuition but breaks down in practice because money supply is hard to define and velocity is even harder to measure. Different kinds of money have different effects (Priority: 5/5): Moran and Roubini argue against a single theory of everything and instead say reserves, deposits, and other forms of money have distinct liquidity and inflationary effects. Post-COVID stimulus as a monetarist case study (Priority: 4/5): The episode suggests pandemic-era stimulus showed the difference between reserves created through QE and deposits sent to households, with the latter proving much more inflationary. Long/short market commentary (Priority: 2/5): In the closing segment, Brendan goes long Fed task forces and Rob goes long stock-market corrections, framing both as healthy, contrarian developments.

Key Arguments: Monetarism is conceptually simple: if money grows faster than output, prices tend to rise. The main weakness of monetarism is not the intuition but the inability to measure money supply and velocity precisely enough to build a reliable model. Milton Friedman’s monetary aggregates work was powerful because it compiled extensive historical data, but policy attempts to mechanically control the money supply were imperfect. The Fed abandoned monetarism partly because it treated the discipline as embarrassing after its 1980s failures. A newer version of monetarist thinking may be useful if it focuses on different forms of money and their liquidity rather than a single aggregate. COVID-era policy suggests that sending money directly to households can be more inflationary than expanding bank reserves. Warsh’s task forces could bring serious reconsideration of Fed measurement and policy tools, unlike symbolic task forces that lead nowhere.

Data Points: Inflation explanation: Money growth faster than output - Friedman’s definition of inflation as a monetary phenomenon Time period: 16th century - Spain’s silver influx used as an early historical example of monetary inflation Money history compilation period: 1860s to 1960s - Friedman and Schwartz’s monetary data set spans a century of U.S. banking history Policy era: 1970s - Inflation spike that made monetarism politically and intellectually relevant Policy actor: Paul Volcker - Fed chair associated with attempts to restrain money supply growth Task force context: 2 task forces - Kevin Warsh announced the creation of multiple Fed task forces to revisit policy and measurement Time reference: 2010s - Referenced as an era when money-printing fears did not produce much inflation

Pivotal Quotes: "Inflation is always and everywhere a monetary phenomenon" — Milton Friedman: Opening quote used to introduce the episode’s topic "the challenge with monetarism is that it is two things: it is a pretty rigorous theory. It's also probably the way your uncle thinks about money." — Brendan Greeley: Explains the gap between formal economics and intuitive popular thinking "the difficulty of measuring it was so horrific in the 1980s that there's just no point in going back to it" — Brendan Greeley: Describes why monetarism fell out of favor at the Fed

Implications: Monetarism may return in a revised form: not as a rigid rule for total money supply, but as a framework for tracking which kinds of money are being created and how they reach the economy. That could matter for future Fed policy and inflation control.