Rise of the machines to blame for the lacklustre US recovery

Roombas may look cute, but not when they're taking your job.

The Washington Post's Dylan Matthews highlights a new NBER working paper (£) by Duke University’s Nir Jaimovich and the University of British Columbia’s Henry E. Siu which examines why "jobless recoveries" have become the norm in the US after recent recessions. The short version is that it's all about the robots.

The history of the US labour market since the 1980s has been one of "job polarisation", the authors argue:

[E]mployment is becoming increasingly concentrated at the tails of the occupational skill distribution. This hollowing out of the middle has been linked to the disappearance of jobs focused on “routine” tasks – those activities that can be performed by following a well-defined set of procedures. Autor et al. (2003) and the subsequent literature demonstrates that job polarization is due to progress in technologies that substitute for labor in routine tasks.

At one end of the market are non-routine cognitive jobs, "such as physicians, public relations managers, financial analysts, computer programmers, and economists" (and, one would hope, journalists), while at the other end are non-routine manual occupations "including janitors, gardeners, manicurists, bartenders, and home health aides". Polarisation of the labour market comes from technological improvement replacing people in routine jobs, both manual and cognitive – "secretaries, bank tellers, retail salespeople … dressmakers, cement masons, and meat processing workers."

The classic victim of mechanisation is the factory worker, but it actually hits a far more varied cross-section of careers. Think about automated phone trees replacing secretaries, self-checkouts replacing retail workers, or Oyster cards obviating the need for ticket sales on the London Underground. In fact, according to the Council on Foreign Relations' Edward Alden, manufacturing itself has largely reached maximum automation already:

Manufacturing output in the United States is no longer growing as rapidly as it once was (and as you would expect if technology had simply been replacing workers in factories). Real manufacturing output grew just 15 percent in the 2000s, compared with more than 35 percent in each of the 1970s and 1980s and more than 50 percent in the 1990s.

In itself, this technological change is obviously not something to bemoan – it represents society getting more productivity out of fewer people. If we wanted to follow Keynes, we could literally give all of those people replaced by robots permanent paid holidays and the economy would be no worse off. In actual fact, of course, we realise that improvement not as an increase in leisure time, but as an increase in output: the freshly unemployed are sent out to find more employment, and technological growth results.

This would be relatively pain-free if it happened at a slow, background pace, but that's not the case. Instead, "the decline in routine occupations is concentrated in economic downturns":

Following the peak in 1990, per capita employment in these occupations fell 3.5% to the trough of the 1991 recession, and a further 1.8% during the subsequent jobless recovery. After a minor rebound, employment was essentially flat until the 2001 recession. In the two year window around the 2001 trough, this group shed 6.3% of its employment, before levelling off again. Routine employment has plummeted again in the Great Recession – 12.0% in the two year window around the trough – with no subsequent recovery.

The above chart shows routine employment in the US, with recessions overlaid in shaded pink – and the precipitous decline, and lack of recovery is clear to see.

Gradually, the people who did these routine jobs will filter up or down the skills ladder. The lucky, privileged or smart ones will up-skill and end up in non-routine cognitive work, while the rest will fight for the pool of non-routine manual jobs.

Employment will, eventually, rebound from this slump. As growth returns – helped by the new efficiencies of technological change – there will be more jobs at both the top and bottom of the skills ladder. But as technological progress continues, the safe niches of high- and low-skilled jobs may themselves come under attack.

In May, Martha Gill reported that robots are now writing business stories (which is totally fine), and in June, Rafael Behr wrote about the fear in Downing Street prompted by the rise of the robolawyers:

What happens when the same dynamic creeps up the skills ladder? What are the social and political consequences when white-collar, middle class jobs are increasingly outsourced or done by computers? Plenty of professionals who thought they were immune to the labour market pressures exerted by globalisation will suddenly start to feel very insecure. This is a change that could make itself felt easily within a decade.

What's strange about the whole thing is that, viewed from a macroeconomic point of view, this ought to be good news. If ever fewer people can create ever more "stuff" (be that widgets, legal documents, or business reports), then the potential is for everyone to be better off. The sad reality, of course, is that in the UK and US, the attitude is largely a laissez-faire rejection of the state's responsibility to smooth over the turbulence of structural shifts. But as ministers start to see people like them suffering the same changes that their constituents have for three decades now, there is the chance that real change may finally be possible. There have been attempts to tackle what such a change would mean, from nef's call for a 21 hour week, to the Green Party's suggestion of a Citizen's Income. Or maybe its just more, better targeted, and higher quality opportunities for, and support during, retraining which are needed.

Either way, we've got until the next recession to get some plans in order, or we will have to go through the same routine all over again. And when the robojournalists come for me, I want an exit strategy.

Update

A commenter is concerned about the fact that the above chart uses an unfamiliar y-axis.

The graph is presented as the log value of the employment rate for routine industries, defined in the paper as:

“Sales and related occupations”, “office and administrative support occupations”, “production occupations”, “transportation and material moving occupations”, “construction and extraction occupations”, and “installation, maintenance, and repair occupations”.

Employment rate rather than employment level is used so that the effect the authors are discussing is not masked by population increases. I've charted the sum of the routine employment level as well as the sum of the routine employment level divided by the working age population (roughly equivalent to employment rate), which ought to demonstrate why the latter is used.

As for taking the log value, rather than the absolute percentage, we do that because when comparing different percentages, the log rate evens out differences between changes at high percentages and changes at low percentages. The difference between 2% and 1% is one percentage point, and the difference between 20% and 10% is ten percentage points, but the difference between both log(20%) and log(10%), and log(2%) and log(1%), is 0.3.

A wannabe robojournalist. It can't be bargained with. It can't be reasoned with. It doesn't feel pity, or remorse, or fear. And it absolutely will not stop, ever, until it has filed copy. Photograph: Getty Images

Alex Hern is a technology reporter for the Guardian. He was formerly staff writer at the New Statesman. You should follow Alex on Twitter.

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Hillary Clinton can take down the Donald Trump bogeyman - but she's up against the real thing

Donald Trump still has time to transform. 

Eight years later than hoped, Hillary Clinton finally ascended to the stage at the Democratic National Convention and accepted the nomination for President. 

Like her cheerleaders, the Obamas, she was strongest when addressing the invisible bogeyman - her rival for President, Donald Trump. 

Clinton looked the commander in chief when she dissed The Donald's claims to expertise on terrorism. 

Now Donald Trump says, and this is a quote, "I know more about ISIS than the generals do"

No, Donald, you don't.

He thinks that he knows more than our military because he claimed our armed forces are "a disaster."

Well, I've had the privilege to work closely with our troops and our veterans for many years.

Trump boasted that he alone could fix America. "Isn't he forgetting?" she asked:

Troops on the front lines. Police officers and fire fighters who run toward danger. Doctors and nurses who care for us. Teachers who change lives. Entrepreneurs who see possibilities in every problem.

Clinton's message was clear: I'm a team player. She praised supporters of her former rival for the nomination, Bernie Sanders, and concluded her takedown of Trump's ability as a fixer by declaring: "Americans don't say: 'I alone can fix it.' We say: 'We'll fix it together.'"

Being the opposite of Trump suits Clinton. As she acknowledged in her speech, she is not a natural public performer. But her cool, policy-packed speech served as a rebuke to Trump. She is most convincing when serious, and luckily that sets her apart from her rival. 

The Trump in the room with her at the convention was a boorish caricature, a man who describes women as pigs. "There is no other Donald Trump," she said. "This is it."

Clinton and her supporters are right to focus on personality. When it comes to the nuclear button, most fair-minded people on both left and right would prefer to give the decision to a rational, experienced character over one who enjoys a good explosion. 

But the fact is, outside of the convention arena, Trump still controls the narrative on Trump.

Trump has previously stated clearly his aim to "pivot" to the centre. He has declared that he can change "to anything I want to change to".  In his own speech, Trump forewent his usual diatribe for statistics about African-American children in poverty. He talked about embracing "crying mothers", "laid-off factory workers" and making sure "all of our kids are treated equally". His wife Melania opted for a speech so mainstream it was said to be borrowed from Michelle Obama. 

His personal attacks have also narrowed. Where once his Twitter feed was spattered with references to "lying Ted Cruz" and "little Marco Rubio", now the bile is focused on one person: "crooked Hillary Clinton". Just as Clinton defines herself against a caricature of him, so Trump is defining himself against one of her. 

Trump may not be able to maintain a more moderate image - at a press conference after his speech, he lashed out at his former rival, Ted Cruz. But if he can tone down his rhetoric until November, he will no longer be the bogeyman Clinton can shine so brilliantly against.