The minimum wage should rise to £10 an hour and the rich should pay a wealth tax, Green Party leader Natalie Bennett said yesterday at the launch of radical new manifesto.

In an announcement that might see the 2015 election race gain a fifth strong contender, the Greens have made a series of radical pledges to address Britain’s financial woes.

Among the proposed policies is the raising of the minimum wage to a rate £2 above the current national living wage.