That's kind of the thought, yes. Negative rates should not be sustainable for any significant period of time and most interest rate models are built on that assumption.
_The Economist_ has had several articles on countries that have experimented (temporarily) with negative interest rates and concluded those experiments didn't have much of an effect on those countries' respective economies.
Whatever your view of the Fed is they are generally smart and well-read people who have probably also read those articles or the research papers backing them, so I think it's unlikely that interest rates will ever go negative.
If countries adopted negative interest rates we could stop the inflation nonsense and then you could easily compare countries based on their interest rate. In this case the Indian interest rate would be somewhere between -1% and 0% instead of 5% inflation and 4-5% interest.
I agree. I look forward to seeing how this is reported in the Economist which for several years insisted as a matter of fact that negative interest rates were impossible (I suspect this represented the view of one particularly dogmatic editor).
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