US and Japan Face Debt Abyss as Interest Rates Signal Turmoil

The US and Japan are facing a precarious situation as their massive public debt weighs heavily on their economies. According to the IMF, the US's general government gross debt is projected to reach approximately 126% of GDP by 2026, while Japan's debt stands at over 230% of GDP.

Japan has been able to sustain its high levels of debt due to low financing costs, but this model is beginning to show strain as inflation returns. The Bank of Japan has lifted its benchmark rate to 1%, and markets expect further hikes, which will exacerbate the country's fiscal situation.

The relationship between public debt and interest rates is becoming increasingly alarming in both countries. A significant rise in interest rates can generate severe fiscal pressure, causing monetary policy to collide with fiscal policy. In the US, a yield of 5.2% on the 30-year bond is not an indicator of crisis alone, but when multiplied by the country's massive debt load, it poses a major problem.

The US and Japan are intertwined economies, and any instability in one can have far-reaching consequences for the other. The joint intervention in the foreign exchange market between the two countries underscores their mutual dependence. However, the real risk lies in the bond market, where a sudden spike in yields can morph into a liquidity squeeze.