Machines will never put humans out of work

It is now widely accepted that technological advances, especially ones that make machines more like humans -- such as robotization or artificial intelligence -- are putting people out of work and will only destroy more jobs in the future. The wealth will accrue to those who own the machines, not to what's known as the middle class today. There's some good news for humans, though: The evidence of our displacement by machines is sketchy, and we should be able to adjust to the new technological era if we put our minds to it.

Eric Brynjolfsson and Andrew McAfee of the Massachusetts Institute of Technology labeled this "the great decoupling": according to them, advances in productivity, mainly driven by the development of digital technology, and the resulting economic growth, no longer cause employment and workers' incomes to rise. "The Second Machine Age is playing out differently than the First Machine Age, continuing the long-term trend of material abundance but not of ever-greater labor demand," McAfee told Harvard Business Review.

Yet the economist Robert Atkinson, who heads the Information Technology and Innovation Foundation, argues that no "great decoupling" is taking place. Employment, he points out, declines in step with the working-age population. Productivity and employment, Atkinson writes, "were never coupled, any more than the divorce rate in Maine and the consumption of margarine (two variables that have moved together)."

It might make more sense to examine the relationship between productivity and unemployment, rather then employment, but there's only a weak negative correlation between them.

What about stalled income growth? Atkinson's argument is that it has nothing to do with productivity increases, either. Incomes stopped growing because of increased inequality within occupations, not because technology wiped out jobs in middle-wage professions. "To take an example from pro basketball, income inequality did not grow because technology eliminated middle-skilled players, it grew because of political economy factors, such as the introduction of free agency, " Atkinson writes.

The people at the top of the income distribution aren't all bankers or tech gurus. Seven percent of the top 1 percent of earners are lawyers, another 7 percent doctors, 3 percent work in insurance and real estate. According to a recent article by Jonathan Rothwell, a Brookings Institution fellow, "there are five times as many top 1 percent workers in dental services as in software services."

Technological disruption doesn't explain the rise of the top 1 percent and the lack of median income growth.

One could argue that even if technology isn't eliminating jobs or depressing incomes now, it may do so in the future, when machines get intelligent enough to perform most human functions.

Carl Benedikt Frey and Michael Osborne made this argument in a 2013 paper that suggested that 47 percent of total U.S. employment was at risk from "computerization," in areas as diverse as truck driving and legal writing.

Atkinson's response to that is that the "robot owners" who will reap the financial benefits of all that automation will need to spend their money on something, and they will likely want to spend it on something with a human touch:

"Global productivity could increase by a factor of 50 without people running out of things to buy. Just look at what people with higher incomes spend their money on: nicer vacations, larger homes, more restaurant meals, more entertainment like concerts and plays. Moreover, if we ever get that rich, working fewer hours would evolve on its own."

Even now, top earners spend larger shares of their income on education, personal services, handcrafted luxury items and insurance. Even Frey and Osborne agree that "persuading" -- as in selling an insurance policy -- won't be automated anytime soon, and nor will jobs such as making one-of-a-kind furniture or small-batch whisky.

Atkinson's purpose is to convince regulators and policymakers that tech-driven productivity growth is to be encouraged, not suppressed for the sake of keeping people employed in jobs that are not really needed in the evolving economy. That may sound like a primitive Darwinian argument: What happens to the people who are eventually displaced? Paradoxical as it may seem, allowing machines to take over whole industries and enrich their owners can only work without disturbing social peace if governments invest in training people for old-fashioned professions. Someone will need to make all those artisanal products that machine-owners will crave. Someone will need to take service industries to a whole new level of personal attention, inaccessible to machines.

And someone will need to provide forms of entertainment that machines will forever struggle with; ballet dancers and classical musicians may suddenly find themselves in great demand.

This is not about providing more or cheaper college education. In Europe, according to the European Commission, about 40 percent of workers feel overskilled -- they have more education than their job requires. It's a matter of matching skills to a shifting demand pattern, driven by technology change -- and by people's need to feel human in a world of machines.

Comment by clicking here.

Leonid Bershidsky, a Bloomberg View contributor, is a Berlin-based writer.