For a comparison, the Fortune 500 companies saw 15.7% of their directorships occupied by females in 2010.
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Peter Jauhal of Inbucon-Meis, a London consultancy, wants in addition to cut the number of interlocking directorships between companies.
But no, those burdens and risks do not deter people from seeking directorships.
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In my experience, 95% of the time, operating executives who take on these outside directorships are doing it for their egos.
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Some, who prefer not to made accountable to political bosses, may be offered attractive retirement packages and directorships in the private economy.
After the scandal, Murdoch stepped down from a string of company directorships and abandoned a multibillion-dollar bid to acquire satellite broadcaster BSkyB.
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Remunerated directorships: Eden Research plc (non-executive) Chairman and director, 3DM Research Limited.
Too often, directors have none of their own money at stake, and look to take on directorships in order to supplement their own income.
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Yes, the burdens and risks of directorships are significantly greater than in the past, and they do justify higher equity-based compensation subject to corporate performance.
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He also named several generals to government directorships and agencies.
But such individuals will be increasingly unwilling to accept directorships if they anticipate that they will be sued for damages every time the corporation runs afoul of a regulatory requirement.
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"There must be no interlocking directorships, " said a source.
Indeed shareholders should demand that executives limit outside directorships.
Investors should vote against George Mitchell, a former senator, they say, because he has been a paid consultant to Disney and because his other directorships leave him too little time for Disney.
For instance, it tells us that the UK government has had evidence since last February on which it could take action against former directors at RBS to ensure they can no longer hold company directorships.
One possible reason for this is that independent board members are worried that their value in the market for directorships will plummet if they have overseen companies that have filed for bankruptcy or debated restructuring.
Following his first failed leadership bid Mr Clarke headed to the backbenches, where he largely vanished from the front line of the national political scene, with some company directorships and other pursuits helping to occupy his time.
Ms Rosewell, who runs an economic analysis partnership and holds a number of non-executive directorships, believes it would not take much longer to build than a third runway at Heathrow - one of the other options under consideration.
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Although the United Kingdom revenue authorities have been wise to this tax dodge for years, it is evidently still popular with taxpayers from other countries: the report estimates that the 575 residents of Sark appeared to hold around 15, 000 directorships late last year.
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