Wages and salaries have been growing slower than the overall economy for decades. After-tax profits have been growing much faster than the economy. 

It’s time for an update of a chart we’ve posted before:

Source: Federal Reserve, Bureau of Labor Statistics, Bureau of Economic Analysis.

The drift between these two adds up to an enormous sum. Peter Orszag wrote last year: “If labor compensation hadn’t fallen so much as a share of national income, American workers would be enjoying about $750 billion more in take-home pay.”

Now, this chart isn’t as simple as it looks. Part of the reason wages take up a smaller share of the economy is because benefits like health insurance take up a larger share of workers’ total compensation. And part of the reason corporate profits have grown as a share of the economy is because of a shift from industrial-commodity corporations to technology firms that naturally have higher margins.

But there is no doubt that part of the swing between wages and profits is explained by one growing at the expense of the other. This is natural — we’ve been through two other cycles since 1900 — but I wonder how long the current cycle can last. Take this recent story about Wal-Mart :

Walmart, the nation’s largest retailer and grocer, has cut so many employees that it no longer has enough workers to stock its shelves properly, according to some employees and industry analysts. Internal notes from a March meeting of top Walmart managers show the company grappling with low customer confidence in its produce and poor quality. “Lose Trust,” reads one note, “Don’t have items they are looking for — can’t find it.”

There comes a point where it is in capital’s best interest to increase labor’s share of output. If Wal-Mart is any indication, we’re probably pretty close to that point. 

The article The Fight Between Wages and Profits: When Will It End? originally appeared on Fool.com.

Morgan Housel has no position in any stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.

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