"broad collaboration" is correct and usable in written English.
You can use it to refer to collaboration that involves a wide variety of people or organizations, such as "The project was completed through a broad collaboration of stakeholders from all levels of government and industry."
"We need a broad collaboration with governments," said Rogge.
"Science always requires a broad collaboration," he said.
I was able to contribute to some degree at the Arts Council but it was a broad collaboration.
[C17.] Exelixis, a biotechnology company, has entered into a broad collaboration with GlaxoSmithKline to discover and develop drugs for cancer, inflammatory diseases and disorders involving blood vessels.
Exelixis Inc., a biotechnology company, has entered into a broad collaboration with GlaxoSmithKline to discover and develop drugs for cancer, inflammatory diseases and disorders involving blood vessels.
But they also said it was difficult to keep pace with those who seek to exploit children on the Web and called for broad collaboration among those in the financial services industry and law enforcement authorities around the world.
For shaking up the World Business Council for Sustainable Development, telling members to shape up or ship out, and being instrumental in creating broad collaborations, rather than trying to "own" initiatives.
In order for broad collaborations to be most effective, mechanisms must be developed for effective communication, data sharing, and research integration among institutions and disciplines.
The footage is part of a broader collaboration between the RSC and British Museum aimed at matching Shakespeare's words and characters with the objects on show.
The individual units will still promote themselves, but the agency will find areas for broader collaboration between units and with advertisers.
But they also discussed broader collaboration in the future, including matching their countries' environmental rules.At first glance, this is bad news for tar-sands producers, already struggling with the slump in oil prices from over $140 a barrel last July to less than $40 today.
