Tyler Cowen on Monetary Policy

Episode Summary

Executive Summary: Russ Roberts and Tyler Cowen explore money, inflation, Fed policy, and alternatives like gold or private money. Cowen argues moderate inflation is useful to avoid wage cuts and that central banks have improved, but warns against overreading interest-rate policy. The discussion emphasizes how credit shocks, inflation expectations, and institutional credibility shape macro outcomes.

Main Topics: Money supply, inflation, and price stability (Priority: 5/5): The conversation opens with what money supply measures mean and why central banks track them. Cowen argues that fixed money growth would imply deflation as output rises, while Friedman-style growth near real GDP growth can support stable prices; he prefers low positive inflation over zero inflation or deflation. Why moderate inflation may be desirable (Priority: 5/5): Cowen says slight inflation helps avoid nominal wage cuts that workers resist psychologically, and that stable but nonzero inflation makes relative price signals clearer than volatile inflation. Roberts explores how nominal wage cuts can be disguised through inflation. How the Fed transmits monetary policy (Priority: 5/5): They distinguish between the discount rate and the federal funds rate, and debate whether Fed actions work mainly through money/liquidity creation rather than directly via interest rates. Cowen stresses the Fed’s effect on liquidity, expectations, and credit-market psychology more than on investment directly. Phillips curve, stagflation, and limits of stabilization (Priority: 5/5): Cowen argues the short-run Phillips curve has some empirical support, but repeated attempts to exploit inflation-unemployment tradeoffs create worse inflation without lasting employment gains. Stagflation and the 1970s are presented as evidence that negative real shocks cannot be easily fixed by monetary policy. Credit shock, housing bubble, and market dysfunction (Priority: 4/5): The 2008-era turmoil is framed as a credit shock triggered by the real estate bubble and a sudden reassessment of risk. Cowen emphasizes sectoral reallocation away from risky assets, drying-up of trading, and the loss of informational content in prices due to uncertainty and agency problems. Alternatives to fiat money: private money and gold standard (Priority: 4/5): They assess competing monies and gold. Cowen says private money is already partly present through checks and deposit insurance, and that gold is not a reliable stabilizer because its price is volatile. He views a gold standard as potentially worse, especially for a single country. Central bank independence and inflation targeting (Priority: 4/5): The discussion closes on whether central-bank independence is durable and how modern policy shifted from money-supply targeting to inflation targeting. Roberts invokes Friedman’s view that money growth still matters; Cowen notes the political and institutional pressures shaping central banks and the risks of future accountability changes.

Key Arguments: Moderate inflation around 2%–3% can be beneficial because it avoids socially and psychologically costly nominal wage cuts. Broadly stable inflation is more useful than zero inflation or deflation because businesses need predictable price signals. The Fed’s most important impact is often via liquidity and credit-market expectations, not a simple mechanical effect on business investment. Short-run monetary surprises can lower unemployment temporarily, but repeated use produces higher inflation without durable employment gains. Stagflation showed that monetary policy cannot offset a major negative real shock like an oil-price shock or a credit contraction. The 2008 crisis is better understood as a credit and risk reallocation shock than as a pure price-level event. Gold is not a clear stabilizer because its own price is volatile; a gold standard could create harmful deflationary shocks. Private money already exists in limited forms, but the key issue is the government guarantee and network effects behind widely accepted money. Central banks have done better in recent decades because of monitoring, institutional learning, and political commitment to low inflation. Inflation targeting replaced money-supply targeting because money aggregates are hard to control and because central banks wanted a more practical policy rule.

Data Points: Preferred inflation rate: 2% to 3% per year - Cowen says moderate inflation helps avoid nominal wage cuts and supports flexibility Rate of inflation stability discussed: 1.5% to 3% - Cowen suggests fluctuations within this range are relatively innocuous Business expected return on major commitments: around 30% (not risk-adjusted) - Used to argue that small interest-rate changes may not strongly affect major investment decisions Interest rate example: 3% to 6% - Cowen says changes in this range may matter less than commonly assumed High-inflation examples: 10%, 20%, 30%, 50%, 100%, 400% - Used to distinguish mild inflation from dangerous inflation and hyperinflation Prime rate in the 1970s: 20 percent - Referenced as part of the stagflation period and policy turmoil Fed rule cited by Friedman: 3% money-supply growth - Presented as the proposed rule to match roughly 3% economic growth and stabilize prices M2: referenced as the relevant money-supply measure - Roberts notes Friedman’s view that smooth M2 growth helped macro stability Inflation shock response window: short run vs. long run - Cowen argues monetary surprises can lower unemployment only temporarily

Pivotal Quotes: "I don't think we want either deflation or a stable price level." — Tyler Cowen: Cowen explains why some positive inflation is preferable to zero inflation or deflation "It's an easy way to trick people into wage cuts when necessary." — Tyler Cowen: He defends slight inflation as a way to reduce nominal wages without overt pay cuts "When you have a big and negative real shock. There's really nothing the Fed can do that will make people very happy." — Tyler Cowen: Cowen summarizes the limits of monetary policy during crises like the oil shock or credit shock

Implications: For listeners, the episode clarifies that monetary policy works imperfectly and often indirectly through expectations and credit conditions. It also suggests that low, stable inflation matters more than rigid money targets, while gold and private-money alternatives offer less certainty than their advocates claim.