In short, the corporations are making out like bandits. Now they’re sitting on mountains of cash and they still are not interested in hiring to any significant degree, or strengthening workers’ paychecks.

Productivity tells the story. Increases in the productivity of American workers are supposed to go hand in hand with improvements in their standard of living. That’s how capitalism is supposed to work. That’s how the economic pie expands, and we’re all supposed to have a fair share of that expansion.

Corporations have now said the hell with that. Economists believe the nation may have emerged, technically, from the recession early in the summer of 2009. As Professor Sum writes in a new study for the labor market center, this period of economic recovery “has seen the most lopsided gains in corporate profits relative to real wages and salaries in our history.”

Worker productivity has increased dramatically, but the workers themselves have seen no gains from their increased production. It has all gone to corporate profits. This is unprecedented in the postwar years, and it is wrong.

Having taken everything for themselves, the corporations are so awash in cash they don’t know what to do with it all. Citing a recent article from Bloomberg BusinessWeek, Professor Sum noted that in July cash at the nation’s nonfinancial corporations stood at $1.84 trillion, a 27 percent increase over early 2007. Moody’s has pointed out that as a percent of total company assets, cash has reached a level not seen in the past half-century.

Executives are delighted with this ill-gotten bonanza. Charles D. McLane Jr. is the chief financial officer of Alcoa, which recently experienced a turnaround in profits and a 22 percent increase in revenue. As The Times reported this week, Mr. McLane assured investors that his company was in no hurry to bring back 37,000 workers who were let go since 2008. The plan is to minimize rehires wherever possible, he said, adding, “We’re not only holding head-count levels, but are also driving restructuring this quarter that will result in further reductions.”

There can be no robust recovery as long as corporations are intent on keeping idle workers sidelined and squeezing the pay of those on the job.

It doesn’t have to be this way. Germany and Japan, because of a combination of government and corporate policies, suffered far less worker dislocation in the recession than the U.S. Until we begin to value our workers, and understand the critical importance of employment to a thriving economy, we will continue to see our standards of living decline.