What Current Interest Rates Really Mean

 | Jun 24, 2016 03:22AM ET

On June 14, the 10-year German bund yield traded briefly below zero for the first time. It was an inauspicious record but one that defines the contradictions at the center of all this economic and monetary controversy. On the one hand, that is what central banks tell us they are after especially with QE, to reduce interest rates even at the long end. By buying government bonds all throughout Europe, the reduction in benchmark rates (as sovereigns are judged to be the risk-free equivalent component of the Fisherian hierarchy) is supposed to spread through the rest of the financial system to be “accommodative” to the wider economy. This is “stimulus.”

Yet, on the other hand government bond yields are taken as a safety bid, meaning a natural tension between “accommodation” and concern. As the Wall Street Journal on June put it:

Bond yields in Europe have been sliding for a year, weighed down by aggressive central-bank bond buying, negative short-term rates and skepticism about an economic recovery that seems persistently to falter.

If QE and NIRP actually worked then the rest of that quote would never have been written, as yields have been sliding for far, far more than a year. The mainstream can’t figure out the inequity at the center of all this because orthodox economics has confused everyone with its models of dubious assumptions. Among them is that credit and money are interchangeable substitutes. They are not.

In April 1998, Milton Friedman wrote an article for the Hoover Institute (titled Reviving Japan) admonishing the Bank of Japan for these same kinds of mistakes. Primarily, he felt the central bank was repeating errors that the Federal Reserve in the United States during the Great Depression committed. The details of his criticism aren’t relevant here except for his charge that monetarists of that time had somehow gone upside down about interest rates – what should be a central belief in all economics of every persuasion.

It is rote mainstream recitation that low interest rates equal stimulus while high interest rates demonstrate the opposite to some degree of “tightness.” As Friedman pointed out, this is entirely backward as demonstrated conclusively by economic history:

Initially, higher monetary growth would reduce short-term interest rates even further. As the economy revives, however, interest rates would start to rise. That is the standard pattern and explains why it is so misleading to judge monetary policy by interest rates. Low interest rates are generally a sign that money has been tight, as in Japan; high interest rates, that money has been easy.

In the US during the Great Collapse of the early 1930’s, money supply fell by one-third but the Fed believed monetary conditions were accommodative, “point[ing] to low interest rates as evidence that it was following an easy money policy and never mentioned the quantity of money.” At the opposite end, during the Great Inflation interest rates only shifted higher and higher.

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Reviewing the German bund curve follows these outlines. Prior to the financial crisis, the yield curve was generally normal and gave no clear indication of distress or monetary “tightness.” It moved around in a relatively narrow range, though at the time given monetary policy (myth) surrounding the global 2001 recession there seemed a fair bit of flexibility. By and large, the curve was well-behaved.