The New Normal for Interest Rates: A Canary in the Coal Mine for the Economy

The recent flurry of interest rate hikes has sparked intense speculation, but beneath the surface lies a more profound shift that’s likely to have far-reaching implications for borrowers and investors alike. Economists are warning about a new normal for interest rates, driven by global megatrends that are rewriting the rules of the game.

A key concept in this discussion is the neutral interest rate – often shrouded in mystery but crucially important. Think of it as the economic equivalent of a thermostat: if interest rates are too low, the economy overheats and inflation takes off; if they’re too high, growth stalls. The neutral rate is that sweet spot where the economy hums along without either speeding up or slowing down.

Recent estimates suggest that this sweet spot has shifted upward. Commonwealth Bank’s Trent Saunders pegs the current neutral rate at 3.85 percent, a significant increase from last year’s estimate of 3.7 percent. But this is just one indicator – global interest rates have also been trending upwards, driven by megatrends reshaping our world.

The “savings glut” of recent decades has given way to a new reality: a surge in investment demand, fueled by the rapid adoption of technologies like artificial intelligence and green energy transition. This has created a perfect storm for interest rates – with savings struggling to keep pace with investment opportunities, returns on lending are expected to remain low.

Westpac’s chief economist Luci Ellis is clear about the implications: “We’re not going back to the 2010s world of cheap money because it was an aberration.” The Reserve Bank will likely keep interest rates higher than their pre-pandemic levels even when inflation is under control. In fact, they may stay high for longer.

For borrowers, this means preparing themselves for a new normal where interest rates are higher and more volatile than ever before. While there will still be cycles of rate moves in response to shorter-term economic fluctuations, the underlying trend is clear: interest rates are on an upward trajectory.

This shift has far-reaching implications for policymakers, investors, and individuals alike. As governments intervene in the economy, defense spending rises, and private sector investment surges, the economic landscape is being reshaped before our eyes. The new normal for interest rates is a warning sign that we’re entering uncharted territory.

The interplay between savings and investment, driven by megatrends like AI and decarbonisation, is rewriting the rules of the game. Policymakers will need to adapt their strategies to navigate this new reality – one where interest rates are higher, more volatile, and less predictable than ever before.

As we move forward into this uncharted territory, it’s essential to understand that higher interest rates are here to stay. Only those who grasp the underlying dynamics will be able to navigate the twists and turns ahead with confidence.