I have been reading about the huge investment funds that have developed in the past few years.

The Norwegian Oil Fund (Government Pension Fund Global) has increased another 13 percent in 2012 to $US 712 billion. It is invested in stocks and bonds worldwide, it holds 1.8 percent of all European stocks, and is increasing its holdins in China and Australia in particular over the last few months.

Should "Big Investment" put more money into start-up companies, e. g., renewable energy concerns?

Other giant investment funds are out there. The Ontario Teachers Pension Plan has $US120 billion in assets (strong in NY office building rentals and Canadian real estate through its subsidiaries and ownership of Samsonite and other companies) and is talking of increasing its pipeline holdings (TransCanada, etc.).