Thursday, October 23, 2014
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US Interest Rates Will Continue to Rise

CAMBRIDGE – Six months ago, I wrote that long-term interest rates in the United States would rise, causing bond prices to fall by so much that an investor who owned ten-year Treasury bonds would lose more from the decline in the value of the bond than he would gain from the difference between the bonds’ interest rate and the interest rates on short-term money funds or bank deposits.

That warning has already proved to be correct. The interest rate on ten-year Treasury bonds has risen almost a full percentage point since February, to 2.72%, implying a loss of nearly 10% in the price of the bond.

But what of the future? The recent rise in long-term interest rates is just the beginning of an increase that will punish investors who are seeking extra yield by betting on long-term bonds. Given the current expected inflation rate of 2%, the real rate on ten-year bonds is still less than 1%. Past experience implies that the real rate will rise to at least 2%, taking the total nominal interest rate to more than 4%, even if expected inflation remains at just 2%.

The interest rate on long-term bonds has been kept abnormally low in the past few years by the Federal Reserve’s “unconventional monetary policy” of buying massive amounts of Treasury bonds and other long-term assets – so-called quantitative easing (QE) – and promising to keep short-term rates low for a considerable period. Fed Chairman Ben Bernanke’s announcement in May that the Fed would soon start reducing its asset purchases and end QE in 2014 caused long-term interest rates to jump immediately. Although Bernanke’s announcement has focused markets on exactly when this “tapering” will begin and how rapidly it will proceed, these decisions will not affect the increased level of rates a year or two from now.

The promise to keep the overnight interest rate low for an extended period was intended to persuade investors that they could achieve higher returns only by buying long-term securities, which would drive up these securities’ prices and drive down their yields. But the current version of this promise – not to raise the overnight interest rate until the unemployment rate drops below 6.5% – no longer implies that short-term rates will remain low for an “extended” period.

With the unemployment rate currently at 7.4% – having fallen nearly a full percentage point in the last 12 months – markets can anticipate that the 6.5% threshold could be reached in 2014. And the prospect of rising short-term rates means that investors no longer need to hold long-term bonds to achieve a higher return over the next several years.

Although it is difficult to anticipate how high long-term interest rates will eventually rise, the large budget deficit and the rising level of the national debt suggest that the real rate will be higher than 2%. A higher rate of expected inflation would also cause the total nominal rate to be greater than 5%.

Today’s investors may not recall how much interest rates rose in recent decades. The interest rate on ten-year Treasuries increased from about 4% in the mid-1960’s to 8% in the mid-1970’s and 10% in the mid-1980’s. It was only at the end of the 1970’s that the Fed, under its new chairman, Paul Volcker, tightened monetary policy and caused inflation to fall. But, even after disinflation in the mid-1980’s, long-term interest rates remained relatively high. In 1985, the interest rate on ten-year Treasury bonds was 10%, even though inflation had declined to less than 4%.

The greatest risk to bond holders is that inflation will rise again, pushing up the interest rate on long-term bonds. History shows that rising inflation is eventually followed by higher nominal interest rates. It may therefore be tempting to invest in inflation-indexed bonds, which adjust both principal and interest payments to offset the effects of changes in price growth. But the protection against inflation does not prevent a loss of value if real interest rates rise, depressing the value of the bonds.

The relatively low interest rates on both short-term and long-term bonds are now causing both individual investors and institutional fund managers to assume duration risk and credit-quality risk in the hope of achieving higher returns. That was the same risk strategy that preceded the financial crisis in 2008. Investors need to recognize that reaching for yield could end very badly yet again.

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  1. CommentedRoman Bleifer

    The growth of government bond yield is a consequence. The reason is that foreign investors are surrendering I buy them, that is, refuse to finance the U.S. deficit ( http://crisismir.com/analiticheskie-materialy/ekonomika/110-padenie-ekonomicheskix-indeksov-rezultat-gubitelnoj-ekonomicheskoj-politiki.html ). 4 months figures of net purchases of U.S. securities are in negative territory.

  2. CommentedRalph Musgrave

    The optimum rate of interest for any government to pay is a small negative real rate: that way it profits at the expense of its creditors. I wouldn’t expect Martin Feldstein or the economic illiterates that make up Congress to know how to maintain that small negative rate, but any MMTer can explain how to do it. I can, if anyone is interested.

  3. CommentedLuigi Barretta

    Given the size of private and public debt, I doubt US can survive with a "greater than 2% real rate": in a fully globalized World no way US can have a real GDP growth so strong to stand such level of real rate in the long run. According to many analysts the most of US corporation profits came from savings on passive interests and tax "optimization" by using tax heavens. Growth in sales has been lackluster, personal income has been flat for years and the quality of the job recovery has been poor, mainly part-time waiters and bartenders. Until we reach the point that in emerging markets the middle-class will be large and well consolidated, real growth rate in advanced economies will be weak. Until then I would expect a long term real rate more in the range of -1%/+1% than in range 2%/3%.

  4. Commentedcraig mitchell

    Sooner or later these abnormally low interest rates are going to result in a wave jim of inflation. Interest rates will have to be raised to deal with it. Government spending will have to be cut substantially. Tax rates will have to be reduced for the the economy just to maintain the low levels of growth that we have.

  5. CommentedJohn Doe

    for the dull knives in the drawer like Mr. Bridgeman

    http://zfacts.com/p/318.html

  6. CommentedGautam Khandelwal

    While I agree with you that interest rates have been artificially pushed down, and that bond investors will burn their fingers once again. However, I do believe that in the short run, interest rates will once again be brought down, for despite the recent run of good data from the US, it is unlikely that the economy will sustain without cheap cash. Moreover, the US will be unable to bear the high interest cost on its colossal debt.

  7. CommentedJohn Doe

    an editor, please

    low interest rates on Treasury bonds was not intended to persuade investors that they could achieve higher returns only by buying long-term securities

    it was intended to persuade investors that, if they wanted to achieve higher returns, they had better make other kinds of investments.

    it is a math function that at low interest rates bond prices vary greatly, a matter of common knowledge

    what isn't Feldstein writing about the success of Reagan's fiscal deficits?

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