Economist Warns of 'Deadly Cocktail' for Bond Market

Johns Hopkins economist Steve Hanke has warned of a "deadly cocktail" of factors creating significant risk for the U.S. bond market, suggesting that current yields are already reflecting these concerns. In an interview with Fortune, Hanke stated that the bond market is uniquely positioned as the only major asset class currently pricing risk accurately, and what it is pricing in is "ugly." He specifically pointed to President Trump's policies as inadvertently contributing to this situation, leading to a bond selloff that has pushed yields beyond a threshold that Treasury Secretary Scott Bessent has reportedly sought to defend.

Hanke invoked the concept of "bond vigilantes," a term coined by economist Ed Yardeni in 1983. These are investors who sell government debt en masse to protest what they perceive as reckless fiscal or monetary policy. Their actions aim to drive up yields until policymakers alter their course. Hanke noted that these vigilantes have "come out of hibernation," indicating a renewed investor assertiveness in response to current economic conditions. He expressed a "very bearish" outlook on bonds for an extended period, forecasting that the 10-year Treasury yield could increase by an additional 50 basis points.

According to Hanke, who is also a professor of applied economics at Johns Hopkins and a special counselor at the Center for Financial Stability, the current selloff is driven by three primary forces, ranked by importance. The most significant factor, he asserted, is monetary policy. Hanke highlighted the growth rate of Divisia M4, which he considers the broadest and most reliable measure of the money supply. This measure, produced by the Center for Financial Stability and tracked by monetary economist William Barnett, is currently growing at 6.7% year-over-year. This growth rate exceeds what Hanke's own "Golden Growth Rate" suggests is sustainable for the economy, implying an inflationary pressure or an imbalance in monetary expansion.

The "deadly cocktail" Hanke described is composed of these monetary pressures, combined with fiscal concerns and potentially other market dynamics. While the interview focused on the monetary and fiscal aspects, the implication is that the combination of these elements is creating a precarious environment for bondholders. The "bond vigilantes" are essentially acting as a check on government spending and monetary policy, and their increased activity signals a loss of confidence in the sustainability of current economic strategies. The specific mention of Scott Bessent's "red line" suggests a level of concern from within the Treasury itself regarding the trajectory of yields, underscoring the seriousness of the situation as perceived by market participants and economic observers.