If you look closely, you can almost see America's remaining credibility. Almost.
Credit: Timothy A. Clary

The United States has produced one of the most successful economic stories in human history.

We've had a lot of inherent advantages: abundant natural resources, favorable demographic trends, relative political stability supported by the protective benefit of two oceans, to name a few.

But from colonial times to the present, our happy economy has also been powered by three separate industrial revolutions: 1) the introduction of steam engines and railroads, 2) the inception and widespread use of electricity and the combustion engine, and 3) the invention of computers, the web and mobile communications.

As Northwestern economist Robert Gordon points out in a new paper, these three interlocking events gave rise to a widespread assumption that "economic growth is a continuous process that will persist forever."

That's because each of these industrial revolutions produced a virtuous economic circle.

Each advance built upon the innovations of the previous ones, along the way boosting productivity and revving the American economy, which in turn made American consumers richer and more able to buy stuff.

Well, guess what?

Gordon writes that future growth in consumption per capita — the main engine of the consumer-based US economy — could fall below 0.5 percent a year for what he calls "an extended period of decades."

Yes, that would be a big deal. For some context, between 1860 and 2007 that annual growth rate was 1.9 percent.

What's driving this structural economic slowdown, according to Gordon?

He argues that six "headwinds" are buffeting the US economy, and that these factors were in place even before the Great Recession of 2008.

Count 'em: 1) changing and unfavorable demographics, 2) rising education costs and poor secondary school performance, 3) growing economic inequality, 4) increased competition due to globalization, 5) energy and environmental costs and challenges, and 6) high levels of consumer and government debt.

Taken together, these headwinds will slow growth dramatically into the foreseeable future.

Here's the money quote of Gordon's paper, which is titled "Is U.S. Economic Growth Over? Faltering Innovation Confronts the Six Headwinds":

“Doubling the standard of living took five centuries between 1300 and 1800. Doubling accelerated to one century between 1800 and 1900. Doubling peaked at a mere 28 years between 1929 and 1957 and 31 years between 1957 and 1988. But then doubling is predicted to slow back to a century again between 2007 and 2100.”

This slowdown is happening because the productivity gains associated with computers and mobility have been far less dramatic — at least so far — than in the two previous industrial revolutions, all of which leads Gordon to his depressing theme: "Economic growth may not be a continuous long-run process that lasts forever."

Yeah, it's bleak.

But as Annie Lowrie points out in an Economix blog post that deconstructs this same paper, not everyone agrees.

For a more upbeat view of our economic future — particularly on the relationship between emerging technologies and productivity gains — see this article, The Next Great Growth Cycle.

Here's its author Mark P. Mills:

"We are poised to enter a new era that will come from the convergence of three technological transformations that have already happened: Big Data, the Wireless Wired World, and Computational Manufacturing."

Mills also quotes, in a reassuring way, John Perry Barlow, the co-founder of the Electronic Frontier Foundation and, yes, former Grateful Dead lyricist: “The best way to invent the future is to predict it.”

And on the topic of famous quotes, we might also point to John Maynard Keynes' legendary quip: "In the long run, we're all dead."

Or maybe we should just take comfort in the words attributed variously to Danish physicist Niels Bohr and the wise sage Lawrence Peter "Yogi" Berra:

"Prediction is very difficult, especially if it's about the future."

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