What most companies do doesn’t explain why the already productive companies we’re concerned with in the stimulus can increase productivity through less centralization.

This might provide another reason companies may want less centralization, but doesn’t help explain how companies can become more productive through les centralization.

Even if most increase in productivity has occurred through technology, we still know some companies have increased productivity through less centralization. This answer doesn’t explain how this happened.

This answer tells us what’s happening in companies in which individual employees already have complete individual control. This doesn’t relate to the already productive companies we’re concerned with in the stimulus, which are giving their employees more and more control.

Once a company is already highly productive, further productivity comes from individual employees’ ideas. This could be why less centralization (and greater autonomy for employees) is how already productive companies become more productive.