"This study is still five times below the highest dose at which no adverse effect has been found, " he says.

CNN: Vitamin E may protect lungs

And even if QE has no effect on economic growth, it may still be rational for investors to buy equities.

ECONOMIST: How asset prices react to quantitative easing

Negotiations on the export of natural gas are still stalled over price, which is no wonder given the effect of the shale gas revolution on the world market.

WSJ: Review & Outlook: Asia's Great Rivalry

It could be a couple of weeks until we know the true effect of the latest US debt debate in the markets, but there are still no clear signs that a year-end rally has been written off, writes MoneyShow.com senior editor Tom Aspray .

FORBES: The Week Ahead: Will the Supercommittee Sink the Markets?

Even after the reforms of teachers' pensions take effect in September, this will still be the case for retirements on health grounds, though teachers will no longer be able to accept an ill-health pension one day and be back teaching on a short-term contract the next.

ECONOMIST: Public-sector pensions