Mr. Schmidt's comments follow warnings from some economists that the spread of information technology is starting to have a deeper impact than previous periods of technological change and may have a permanent impact on employment levels.
Google itself, which has 46,000 employees, has placed big bets on automation over some existing forms of human labor, with a series of acquisitions of robot start-ups late last year. Its high-profile work on driverless cars has also led to a race in the automobile industry to create vehicles that can operate without humans, adding to concerns that some classes of manual labor once thought to be beyond the reach of machines might eventually be automated.
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Recent advances in artificial intelligence and mobile communications have also fueled fears that whole classes of clerical and research jobs may also be replaced by machines. While such upheaval has been made up for in the past by new types of work created by advancing technology, some economists have warned that the current pace of change is too fast for employment levels to adapt.
Mr. Schmidt said governments had to encourage rapidly growing "gazelle" companies to counter such trends and create new jobs. He cited shale gas fracking in the US, a technology developed mainly by smaller companies that had created an employment boom.