Publicly funded projects to create new technologies are usually ineffective compared with market-driven ventures.

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President Obama announced in his weekly radio address Recovery Act conditional loan guarantee commitments to two solar companies to fund three major new solar projects in Arizona, Colorado and Indiana that will create thousands of new jobs.

WHITEHOUSE: The White House

Projects to build new housing, roads and bridges will create jobs as part of plans to regenerate the north, the authorities say.

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They generate internal projects which bring them more customers, higher share of wallet with their customers, and create new markets for new revenues where they have few, if any competition.

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The third way that we need to invest is in our infrastructure -- everything from new roads and bridges to high-speed rail and high-speed Internet -- projects that create hundreds of thousands of private sector jobs.

WHITEHOUSE: President Obama and Vice President Biden Address National Governors Association | The White House

And one way of doing that is to create what's called an infrastructure bank where at least a certain amount of infrastructure money, particularly for new projects, would be guided by some clear criteria, a lot of transparency, engineers and urban planners and city planners involved in the process so that we can also get some regional planning.

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