The computer has cut the number of wasted worker hours by 33%.

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For instance, at an annual rate, aggregate production-worker hours increased by 2.2 percent and industrial production rose by 1.0 percent.

WHITEHOUSE: Advance Estimate of GDP for the Fourth Quarter of 2012

How is this decision affected by a cut in weekly hours per worker from 40 to 35?

ECONOMIST: Labour markets

According to a survey by Salary.com, the average worker admits to wasting about two hours of each eight-hour workday, not including lunch or scheduled breaks.

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This is because the additional output of the last worker hired falls by 12.5% (as he works fewer hours), but the cost of employing him falls by less than 12.5% because the fixed costs of employment are unchanged.

ECONOMIST: Labour markets

According to a survey by Salary.com, the average worker admits to wasting 2.09 hours of each eight-hour workday, not including lunch or scheduled breaks.

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