Considering the hard decisions that have to be made in the UK over the next 4 years they need a government with a 20-30 seat majority. In that context anything other than a Conservative-Lib.Dem government will be a disaster.
Yes if Labour stay in power then total collapse of the bond market, currency and stocks guaranteed.
Brown was an economic disaster.
The UK's debt at 70-80% of GDP is close to double what it was when the IMF came knocking on the door in the mid 70s (why does every Labour term end in economic disaster?).
Add in the 'unfunded' public sector liabilies of close to 350% which did not exist anywhere near this level in the 70s and Brown goes down in history as the worst Prime Minister ever.
Add in the 'Keynesian' policies he kept going on about to the electorate without once explaining that it wasn't Keynesianism at all. Keynes said you save in the good times and spend that in the bad. He merely invented and printed fake money in the downturn as a substitute.
Borrowing from the future generation to try and pay for his re-election in the present. In the private sector you would get locked up for this type of activity.
The electorate is not economically educate enough to realise the difference between the deficit and debt. When Brown talked of halving the deficit over the next parliamentary term they actually thought he had a plan to tackle the debt problem. How far from the truth.
The electorate want their bloated public service and think they can afford it. Pure lies by Labour and the incompetent Brown.
When the tories started talking honestly about the tough measures required back in October their support fell.
There is only one party in the UK that has ever managed to run the economy successfully and that is the tories. Labour have always ran large deficits and screwed the country eventually.
Clegg knows the score. A dignified leader. Con-Lib the only economically viable solution to prevent a total collapase of the system.