Because these are tech markets, constantly evolving and complex, most assumptions about the scope of these markets and competitive effects within them are imperfect at best.

FORBES: FTC Ends Google Antitrust Investigation. Critics And Competitors: Move On.

"There was no clear definition of success in a complex and evolving situation, " the PAC report said.

BBC: Report critical of Rock response

The country's regional picture is a complex and evolving one.

BBC: Spain profile

A. The laws are so complex and constantly evolving that U.S accountants spend their careers analyzing the law to benefit their clients.

FORBES: Seven Dos And Don'ts For Chinese Investors In The U.S.

The issue is made more complex by the evolving relationship between Greenland, a hunting-based society of just over 50, 000 people, and its former colonial ruler.

BBC: Call for UN debate rejected as whaling talks end

The Japanese and Russian strands of this hugely complex tale of an evolving nation-state are picked out in less detail.

ECONOMIST: Why China has a long memory

There were new technologies and services, all interconnected and evolving, and our jobs had grown much more complex and demanding.

FORBES: The Dumbest Thing A CEO Ever Said

From performing comprehensive risk assessments to demonstrating compliance with constantly evolving legislative mandates and regulatory requirements, the path to technology adoption is much more rigorous and complex for government.

FORBES: Technology Adoption Slower, But Certain In Government -- And For Good Reason