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How Long for Low Rates?

CAMBRIDGE – How long can today’s record-low, major-currency interest rates persist? Ten-year interest rates in the United States, the United Kingdom, and Germany have all been hovering around the once unthinkable 1.5% mark. In Japan, the ten-year rate has drifted to below 0.8%. Global investors are apparently willing to accept these extraordinarily low rates, even though they do not appear to compensate for expected inflation. Indeed, the rate on inflation-adjusted US Treasury bills (so-called “TIPS”) is now negative up to 15 years.

Is this extraordinary situation stable? In the very near term, certainly; indeed, interest rates could still fall further. Over the longer term, however, this situation is definitely not stable.