In a letter to parliament's Culture, Media and Sport committee last month, James Murdoch said he could have asked more questions of senior officers at the firm, but rejected the suggestion that his resignation as chief executive reflected unrevealed knowledge relating to the scandal.

CNN: James Murdoch resigns as BSkyB chairman

In the U.S. and the U.K., individual executive salaries are public knowledge, thanks to strict disclosure laws.

FORBES: I'll pay yours if you'll pay mine

In the second half of 2010, September, Nokia (NOK) named Stephen Elop, a former Microsoft (MSFT) employee and someone with a strong knowledge of the US software market, as its newest chief executive officer.

FORBES: Time Will Tell If Yahoo!'s New CEO Will Turn It or Burn It