
Cameron, who is fighting for his political survival in the May 7 poll, is promising to pass a law introducing a "tax lock" to prevent increases in income tax, value-added tax or national insurance contributions to state benefits.
His centre-right Conservatives, in power since 2010 as part of a coalition government and at virtual level pegging with the opposition Labour party in opinion polls, has put the economy at the forefront of its campaign.
"It is, in fact, the first law of politics: it's Labour who put up your taxes, and the Conservatives who cut them," he was to say during a campaign speech the West Midlands. ?AFP