It is hard to be cheerful in Britain when the world's biggest stock market is in disarray, but we also have specific problems of our own. No one is quite sure how healthy the UK economy is right now, with official figures suggesting there is virtually no growth. That means any attempt by the Bank of England to raise interest rates to curb the house price boom - as it hinted it might have to do last week - could have serious knock on effects on the rest of the economy, bringing back memories of the boom-and-bust swings which we hoped we had put behind us. On top of that there are fears that big chunks of the financial sector, and the insurance companies in particular, have been caught out by the falling markets, and may have to make things worse by selling more shares themselves, to bolster their cash reserves.