(see related story on Bersani) Rome, March 28 - Beppe Grillo, the leader of the anti-establishment 5-Star Movement (M5S) that holds the balance of power in parliament after last month's inconclusive general election, said Thursday that Italy does not need a new government to pass key reforms. Grillo had rejected centre-left leader Pier Luigi Bersani's appeals for the M5S to break the political deadlock and join a Bersani-led 'government of change' working on an eight-point programme based on many of his movement's proposed policies. Bersani said Grillo, who had hit the centre-left leader with a series of insults, is wasting a golden opportunity to usher in sweeping changes to a political and economic system that has shown massive limits in the last two decades. But comedian-turned-politician Grillo says parliament can still pass measures even if it can't agree on a new executive to replace outgoing Premier Mario Monti's emergency technocrat administration. "Parliament is sovereign, or at least it should be," Grillo said on his popular blog, which gave life to the Internet-based M5S in 2009. "A government is not necessary for a new election law or to launch urgent measures for small and medium-sized companies or to scrap the (nation's) provincial governments," added Grillo, who has sworn never to support a government led by the established parties that he says are responsible for a corrupt, malfunctioning system. "Parliament can discuss these issues and approve measures, if only it wanted to, as of tomorrow. "The idea that is given is that, without a government, the country is immobile, frozen, at the mercy of the (bond) spread and of the (rating) agencies, but there is silence about the fact that laws for reforms can be discussed and approved without a government being in power".