Ex-Fed boss Greenspan says ‘there is no barrier’ to Treasury yields falling below zero

(MarketWatch) There is some $15 trillion in government debt that now yields less than zero, and former Federal Reserve Chairman Alan Greenspan believes there’s no reason why U.S. government bond yields couldn’t join much of the developed world in the subzero world. 

Greenspan, during a phone interview with Bloomberg News on Tuesday, said “zero” has no real meaning for the U.S. bond market and that a slide below that psychological level, already traversed by many others countries, wouldn’t be inconceivable for U.S. paper. 

The 93-year-old economist’s comments come as more Wall Street participants contemplate the very real possibility of negative Treasury rates. 

In a blog post dated Aug. 6, Joachim Fels, a global economic adviser for Pimco, said escalating trade tensions between the U.S. and China could be a spark for U.S. Treasurys slipping to rates that are less than zero. 

Current estimates hold that some $15 trillion in debt bears a negative yield, which means that investors get back less than their original investments for the privilege and perceived safety of owning government-backed debt.

The negative-yield dynamic in the market has proliferated after more than a decade of monetary-policy unorthodoxy intended to juice stubbornly low inflation and anemic growth in Europe and parts of Asia.

Deutsche Bank Securities’ Chief Economist Torsten Sløk on Tuesday noted that some 42% of negative-yielding debt is from Japan, known as JGBs:

jgbsAll maturities of German government debt are yielding negative, headlined by near-record lows for 10-year German benchmark bonds, known as bunds, which yield minus 0.605% (see chart attached):


Greenspan said he agreed with one theory espoused by Fels, which says that investors are more willing to hold on to negative-yielding debt because they have much longer time horizons. 

“Why people continue to buy long-term Treasuries at such low yields may be also due to forces having altered people’s time preferences,” Greenspan told Bloomberg. “But there is hundreds of years of history showing the long-term stability in time preference, so these changes won’t be forever.”

As of late Tuesday, 10-year U.S. benchmark debt was yielding 1.678%, not far from its lowest levels since 2016, with Wall Street anticipating nearly a 100% chance of a 25-basis-point cut in September, following a rate reduction of a similar amount on July 31 by the rate-setting Federal Open Market Committee, based on federal-funds futures, according to CME Group data. 

Stocks, meanwhile, have been rallying on the prospect of cheap debt that is being proffered by global central banks, though the Dow Jones Industrial Average, the S&P 500, and Nasdaq Composite indexes have seen volatile trade on the back of fears about international trade disputes between Beijing and Washington and the impact of that tiff on the global economy.


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