Knut Wicksell may not be a household name like Adam Smith, but his theories from over a century ago are providing fresh clarity on one of the most perplexing questions in modern finance. According to analysts at Deutsche Bank, Wicksell’s concept of the natural rate of interest helps explain why global investors continue to pour money into U.S. debt even as the national deficit reaches staggering heights. Wicksell argued that economic instability arises when market interest rates diverge from the natural rate, which represents the actual return investors earn from investing in the broader economy rather than just holding cash or bonds.
Currently, the United States is carrying nearly 40 trillion dollars in debt, necessitating weekly service payments of roughly 24 billion dollars. By almost any traditional metric, such numbers should trigger alarm bells and prompt lenders to demand much higher interest rates to compensate for the risk. While critics like Ray Dalio have long warned that America is fundamentally living beyond its means, Deutsche Bank suggests that the sheer strength of the U.S. economy keeps the natural rate significantly higher than official rates, masking the underlying fiscal fragility.
The driving force behind this resilience is largely attributed to the explosion of artificial intelligence and the dominance of U.S. tech giants. The bank’s Chief Investment Office notes that high returns on equity within the technology sector are essentially subsidizing federal deficits. In simple terms, investors are willing to tolerate government debt because the surrounding ecosystem of innovation provides lucrative opportunities that cannot be found elsewhere globally. The massive productivity gains fueled by AI act as a magnet for capital, effectively funding the gap created by government spending.
However, this reliance on technological supremacy creates a precarious feedback loop. Much of the progress in AI depends on continued government investment and infrastructure support, which in turn requires more borrowing to maintain. As Deutsche Bank puts it, the U.S. has become both a beneficiary and a victim of its own success. While the tech boom currently shields Washington from a brutal market recalibration, any significant dip in AI productivity or confidence could quickly narrow this advantage and leave creditors questioning whether those red flags are finally too loud to ignore.
