However, many analysts believe a fall in the UK's rating would have little effect.
Mr Cook added Jersey's rating meant it was still perceived very positively by others in the marketplace.
BBC: Jersey falls eight places in Global Finance Centres Index
As the incumbent prime minister, Ms Tymoshenko's rating has also been dented by Ukraine's severe economic crisis.
Last week, the Fitch agency also cut Spain's rating, a process that can raise a country's borrowing costs.
The council's rating has been helped by the fact that its services for children were never that bad.
BBC: NEWS | Health | Social services: A tale of two councils
Mr Yatseniuk's rating has doubled in a few months and he is now catching up with Ms Tymoshenko.
Peugeot SA lost 2%, after Moody's Investors Service downgraded the car maker's rating.
Often what does positively impact a flick's bottom line is a film's rating.
Mr Obama's rating among all voters has fallen (see chart) but remains close to the historical average of 55%.
Its analyst, Kathrin Muehlbronner, added that the "downside risks warrant putting Spain's rating under review" for a further downgrade.
Mr Carter said the lorry's rating capacity limiter, which measures lifting operations, and its emergency stop buttons were not working.
For those with a rating of CCC (roughly, its equivalent of Caa1, Moody's rating for Mueller) the figures are 30% and 53%.
China's rating is several levels higher than its partners in the group.
Debt analysts recently cut El Paso's rating to one notch above junk.
Indeed, on a scoreboard published by the European Commission at the beginning of this year Britain's rating for innovation was comfortably above average.
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Reinsurers use models to set their prices, and credit rating agencies may downgrade an insurer's rating if they don't like what model results show.
Moody's said the country's rating could be hit by recent rises in borrowing costs for the French government and a downturn in growth prospects.
Entertainment President Dawn Ostroff chalks up the first year's rating woes to the station shuffle, which left viewers searching for old shows on new channels.
Doncaster's rating has been published in the Audit Commission's Comprehensive Performance Assessments (CPA) - the annual data for all English single tier and county councils.
Representatives from credit agencies said that the changes would have had a harsh impact on Enron's rating and, as a result, its access to financing.
No agency has cut China's rating since 1999, according to Bloomberg.
And in putting the country's rating on review for a further downgrade, it cited concerns about Spain's mounting debt and its funding needs for next year.
Fitch had warned it could downgrade India's rating if the government didn't take steps to boost growth and address problems such as wide fiscal and current-account deficits.
On Monday, worries about Asia's chilling effect on the international art market spurred Craig-Hallum Capital Group analyst George Sutton to lower Sotheby's rating to Hold from Buy.
Last week, Fitch became the second ratings agency to downgrade the UK's rating from the top notch level of AAA. Moody's had downgraded the UK's rating in February.
This week the Bank of England, following the European Central Bank, said it would no longer be guided strictly by a government-bond's rating when deciding whether to accept it as collateral.
On Oct. 28 Moody's rating service tweaked the outlook to negative from stable on the A3 long-term issuer rating of Nomura Holdings because the Lehman purchase will edge up operating expenses.
On Tuesday, credit rating agency Standard and Poor's said it had downgraded Tunisia's rating, citing "a risk that the political situation could deteriorate further amid a worsening fiscal, external and economic outlook".
"Fillon made clear it had not been his intention to call into question the UK's rating but to highlight that ratings agencies appeared more focused on economic governance than deficit levels, " the spokesman said.
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