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Technology And Inflation: What Investors Should Know


Global head of Vanguard Investment Strategy Group

When 2017 began, many economists expected inflation to accelerate. The labor market was tightening, and unemployment was low. But core inflation, which excludes volatile food and energy prices, registered just 1.9% year-over-year that April, down from 2.3% that January. Prices actually fell in March 2017, the first time U.S. consumer prices had dropped month-over-month since January 2010.

The situation then was unusual, but now, two years later, it’s increasingly clear that inflation remains tame—significantly below the 2% annual target set by the makers of monetary policy in many developed nations.

Why is this happening, when the U.S. job market remains tight? And what does it mean for investors? To answer the first question, look no further than Moore’s Law, which explains how ever-cheaper and ever-better technology reverberates through the economy. Vanguard explained Moore’s Law in 2017 and its lessons still apply.

Inflation has been falling short of the Fed’s target

Notes: Core inflation is measured by the Core Personal Consumption Expenditures Price Index (which excludes food and energy). Data cover January 1998 through March 2019.

Sources: Vanguard calculations, based on data from the U.S. Bureau of Economic Analysis, the U.S. Federal Reserve, and Thomson Reuters Datastream.

A closer look at Moore’s Law

Moore’s Law states that as technology improves, its relative price declines. The wholesale price of cell phones, for example, fell 13% in the United States in April 2017 from a year earlier. But Moore’s Law (coined by Intel co-founder Gordon Moore) is about more than tech products. Its indirect effects restrain prices in every corner of the economy.

According to the U.S. Bureau of Economic Analysis, the amount of technology used in producing goods and services more than doubled from 1997 to 2017, from 8 cents per $1 of output to 17 cents. The impact has been most pronounced in tech-intensive industries such as information technology and communications, professional services, and manufacturing. But as the figure below shows, even sectors that may seem less directly tied to technology—such as health care, education, and retail trade—have seen significant cost savings.

Our research suggests that declining input prices for computers and electronic products, computer design and services, and other technology inputs trimmed almost 0.5 percentage point per year from production costs from 2001 through 2017 and ultimately from wholesale prices. Without Moore’s Law, annualized U.S. inflation would have been almost 0.5 percentage point higher. Without technology’s price-suppressing effects, core inflation would be at 2% or more, achieving the Federal Reserve’s inflation target. The higher inflation that would have resulted would have forced the Fed to further raise interest rates.

Technology’s effects on prices, by industry

Notes: Data cover January 2001 through December 2017. A basis point (bps) is one-hundredth of a percentage point.

Sources: Vanguard calculations, based on U.S. Bureau of Economic Analysis input-output tables and Thomson Reuters Datastream.

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