When the top line is not growing by much, the way to keep enhancing the bottom line is to get after all the short to medium term cost factors and continually sweat the assets.

FORBES: Opinions

Other factors for the rating change included the continuing weakness in the medium-term growth outlook.

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Optimism is not warranted, though, as fundamental factors are poised to keep the market tight and prices high in the medium to long-run.

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We look at scenarios for two factors relating to oil price and production and discover that in the short to medium term, the benefits from higher oil prices on its stock price outweigh any drop in value from production disruptions.

FORBES: Connect

The heart not only beat in the first quarter from pull-forward weather related sales in the U.S., but from structural factors globally that raise the prospect of Wal-Mart shares moving higher in the medium-term.

FORBES: Wal-Mart Shows A Pulse And It's Thumping

Dr Julia Paolitto, admissions and educational policy press officer for Oxford, said there were a number of factors, including a reluctance by some schools to encourage pupils to leave Wales, particularly Welsh medium schools.

BBC: Paul Murphy: Teachers 'lack Oxbridge ambition'