But like the economy of the present, it will also require more workers with so-called "intermediate skills".
To weatherize a million houses for low-income families every year, Mr. Wolfe said, would require more workers at every level.
In the job competition model, field-of-study mismatch is a result of employers in a particular occupational group requiring more workers than available in the corresponding field, thus having to draw workers from further down the queue, reaching those that come from different fields.
She cited the bankruptcy and a new law requiring more worker certifications, making hiring tougher.
For example, the growth of public education increased the demand for more teachers, and growing industrial and commercial enterprises required more office workers and salespeople.
Nine stories tall and 150 yards long, it required more than 100 workers to build, and it has lured 16 of the world's top professional snowboarders to compete in Thursday's Red Bull Snowscrapers, billed as the largest urban snowboard event in North America.
The construction of the mausoleum started when he was just 13 years old and required more than 700,000 workers to complete the various warriors and sculptures, who Zheng thought would protect him in the afterlife.
The constant loading and unloading of parts from elevators cut into production time; the dispersed layout required more than 100 extra workers.
Construction lasted 14 years and required more than a million workers.
Many political and business leaders recognize that prosperity, within a rapidly changing global economy, requires more knowledgeable workers: Today's employers expect workers to be, among other things, critical thinkers, effective communicators, ethical decision-makers and effective team members.
