The Great Deflation Delusion

Deflation is a modern invention—and investors need not be terrified of it, according to one eminent economist.

Worrying about deflation as an action itself, rather than a symptom of something else, will tie investors—and markets generally—in knots, according to Professor John Kay.

The economist and former chair of several academic institutions said inflation—and its counterpoint—were “no more than a reflection of the experience of people alive today,” in a column for the Financial Times.

“We could have been experiencing deflation for years without realising it.” —Professor John Kay“In 1913, unlike now, a pound or a dollar would have bought the same goods as a century earlier,” said Kay. “The longest semi-official price series we have reports a 140 fold rise in prices in the UK since 1750—but even then all the increase up to 1938 is accounted for by inflation during the Napoleonic and first world wars.”

While the price level roughly doubled during both these episodes, according to Kay, it fell slightly over the rest of the period. While this point of reference may serve to allay fears for those whose currency buys more today than last year, Kay advised against panicking.

“With a commodity such as petrol, you can tell whether the price at the pump is rising or falling because petrol is a homogeneous product that changes little over time,” said Kay. “But what has been happening with cars, or smartphones, or medical services? In the [UK inflation measurement] the consumer price index (CPI), the price component for cars comprises the sticker price adjusted for changes in quality. Such quality adjustment is subjective — and, it is generally conceded, too low. So we could have been experiencing deflation for years without realising it.”

“In 1913, unlike now, a pound or a dollar would have bought the same goods as a century earlier.”Essentially, the central point is that the significance of a fall in a price index depends on the causes of that fall, said Kay, citing the declining price level in the second half of the 19th century as the result of rising manufacturing productivity and the opening up of new lands, particularly in North America.

Digital advancement and the rise of China as a financial superpower since the 1980s contributed in a similar way to the technological developments of the 1800s and shifts in global trade, said Kay. These events have combined to lead to inflation.

“On the other hand the deflation, and the associated depression and social strife, that Britain experienced between the world wars was largely the result of a misguided attempt to restore the 1914 exchange rate against the dollar,” said Kay. “Prices in Britain fell steadily after 1920 until President Franklin Roosevelt finally wrecked the gold standard at the London Conference on exchange rate stabilisation in 1933.”

Therefore, investors—and the markets in which they play—should be aware of what is causing prices to rise or fall and act accordingly.

“Raised body temperature might be a sign of fever or the result of a relaxing hot bath: it is wise to determine which it is before you start to worry, far less prescribe remedies,” Kay concluded.

Related Content: European Deflation to Hit Asset Managers’ Bottom Line & Bill Gross: The Case Against Inflation Dependency

«