Haven't seen too many "Help Wanted" signs lately? You haven't been looking hard enough. At factories across the country, thousands of good jobs are going begging.

If that doesn’t sound quite right to you, take it up with the National Association of Manufacturers. NAM and other industry groups insist at least 600,000 factory positions remain open.

These vacancies are supposed to be the result of a “skills gap”—a shortage of workers with the right stuff for today’s high-tech factories. The gap looms large in high-level discussions of what ails the American economy—and it drives much public policy.

“America wants a country that builds things,” says Caterpillar CEO Doug Oberhelman, industry’s leading skills gap spokesman (and board chair of the NAM), “but we have a problem. We don’t have the people we need.”

Politicians of both parties echo this refrain. “Businesses cannot find workers with the right skills,” says Democratic Senator Dick Durbin, and Republican Senator Rob Portman agrees: “Let’s close the skills gap and get Americans working again.”

President Obama, too, maintains that America’s manufacturers “cannot find enough workers with the proper skills.”

Such bipartisan agreement is reflected in budget priorities. Retraining is a touchstone for the Obama White House, and since the president took office more than 18 billion federal dollars have gone to job training programs. Republican Governor Scott Walker of Wisconsin recently committed $8.5 million to training.

Although unemployment remains high, the political focus has shifted away from creating new jobs. Instead it’s on retooling our education system to align with the skilled positions said to be already out there.

Just one hitch: there’s little evidence a “skills gap” exists.

WHY ARE WAGES STAGNANT?

A host of academic studies have debunked the notion—but you don’t need a Ph.D. to figure it out. You just need to recognize the law of supply and demand.

“It’s hard not to break out laughing,” one economist noted recently. “If there’s a skills shortage, there has to be rises in wages [for skilled workers]. It’s basic economics.”

Yet wages in manufacturing—even for skilled workers—are stagnant at best.

Peter Cappelli, professor of management at the Wharton School of Business, hears frequent complaints from manufacturers claiming they can’t find enough machinists. “Yet,” Cappelli notes, “the pay for those positions has dropped 20 percent in real terms over the past 20 years, while skill requirements for many of those jobs have indeed risen.”

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Studies from Illinois and Wisconsin on welding jobs—where employers often cite shortages of available workers—demonstrate that welders’ wages, as well, have decreased over the past decade, and there are thousands more unemployed welders looking for work than there are projected openings.

When skilled slots do go unfilled, it’s because employers seek high-value workers at discount rates.

“We’ve probably all seen the TV shows where new homebuyers go out to look for a new house,” Cappelli says, “and they always are shocked to discover they cannot get what they wanted at the price they want to pay. The real estate agent never concludes the problem is a housing shortage. The buyers have to learn either to pay more or expect less. Is that happening with employers? It does not appear to be.”

When pressed, one manufacturing CEO acknowledged that for him, the “skills gap” meant an inability to find enough highly qualified applicants, with no “union-type experience,” willing to start at $10 an hour.

“That’s not a skills mismatch or even a labor shortage problem in any meaningful sense,” Marc Levine, professor of history and economic development at the University of Wisconsin/Milwaukee, makes clear. “That’s an effort to secure cheap and docile labor.”

“National data on wages, hours, the ‘job gap’ (the ratio of job seekers to available openings), and the skills requirements of projected job openings reveal no evidence of a skills mismatch in national labor markets,” Levine says.

JOBS GAP

In fact, the real deficit we face is a jobs gap. There are still many more unemployed Americans, across every sector of our economy, than there are positions to put them in. “Unemployment is high,” one analyst notes, “not because workers lack the right education or skills, but because employers have not seen demand for their goods and services pick up enough to need to significantly ramp up hiring.

“It is not the right workers we are lacking, it is work.”

“Training doesn’t create jobs,” says Anthony Carnevale, director of Georgetown University’s Center on Education and the Workforce. “Jobs create training. And people get that backwards all the time.”

Economist Paul Krugman states bluntly that claims of a skills gap provide cover for those “powerful forces [that] are ideologically opposed to the whole idea of government action on a sufficient scale to jump-start the economy.”

UNTOLD STORIES

Cat CEO Oberhelman castigates the country’s “failing” schools for not turning out fully employable products—and faults Americans for not pursuing the rewarding careers he says are available in today’s factories.

Stories like this one, from a Wisconsin professor, don’t make it into Oberhelman’s script:

Take my former student, John. He did everything we ask young workers to do, earning two journeyman cards while working and attending Milwaukee Area Technical College full-time. John left Briggs when it began moving jobs to low-wage states and Mexico. But his new employer, Rockwell, began outsourcing to nonunion, low-wage plants even before it eliminated all hourly workers last year. So John started over again at Harley-Davidson. But, a year and a half ago, Harley laid John off.

CEOs like Oberhelman create the hype about a skills gap and then use it to duck responsibility for the joblessness they are responsible for.

The blame and the costs are offloaded onto workers, obliged to bankroll their own training, or onto taxpayers, as public schools and community colleges scramble to make their graduates more employable.

MIND THE OTHER GAP

It’s hypocritical, to put it mildly, for employers to bemoan the shortage of skilled labor while they lay off workers (including skilled ones) and pay less to those they retain. But their whining deflects attention from record profits and lavish executive compensation. .

A recent example comes courtesy of Boeing. CEO Jim McNerney has said the U.S. faces an acute “competitive gap” brought on by “insufficient numbers of capable workers.”

Nonetheless, Boeing recently threatened its highly skilled (and unionized) workforce in Everett, Washington, that the company would move its new 777X plane out of state if workers didn’t take concessions. They gave in.

“Capable” workers were not Boeing’s goal. Cheap and compliant ones are what the company was after. Reflect for a moment about which sort of people you prefer to build the airplanes you travel in.

So, while the fictional skills gap provides a distraction useful to CEOs and politicians, workers (and taxpayers) should keep focused on what matters most: our ever-rising level of income inequality.

That’s the gap that needs minding.

Toni Gilpin is an educator and labor historian, and co-author of On Strike for Respect: The Clerical and Technical Workers’ Strike at Yale University, 1984-85.