The economy is the top issue for undecided voters, according to a new ComRes poll.
With the Tories and Labour running neck and neck in the polls and much of the electorate still not sure who they're going to vote for, the election could be determined on just a few thousand undecided voters in a handful of marginal seats.
ComRes found 93 per cent of undecided voters said the economy will be the most important factor determining who they are going to vote for. Since it is still growing strongly, borrowing is down and unemployment is falling the poll suggests undecideds will break for the Conservative incumbents.
More than 40 per cent of those polled said the Tories will do most to boost economic growth, compared with just 15 per cent who trusted Labour to grow the economy.
When the two party leaders were compared, the Tories again came out on top. Almost 30 per cent said they would like David Cameron back in Downing Street, compared with 16 per cent for Ed Miliband.
Yesterday the two major parties - who are both stuck in the low to mid-30s in the polls - sparred over the findings of the Institute for Fiscal Studies' (IFS) analysis of the parties manifestos.
The Conservatives claimed Labour would borrow £90bn more than a government led by David Cameron. Labour accused the Tories of planning huge cuts to public spending - £30bn in unprotected departments.
But all parties examined by the IFS were rapped on the knuckles for failing to provide the voters with enough detail over their plans to cut the deficit. The IFS's Carl Emmerson said the electorate was "somewhat in the dark" over what the party manifestos were offering.
The polls remain deadlocked, but the Tories hope their strategy of focusing minds on the prospect of a Labour-SNP deal after the General Election, combined with their lead on the economy will sway enough Ukip and undecided voters to ensure the Conservatives are returned to government.