I have seen several in our country, in B.C., where there was a yes and no referendum campaign that was publicly funded by the government. They put limitations on the money for the yes and no campaigns, so there was equal ability for each side to campaign, to politic, and to advertise the merits of each of the systems. I would encourage Parliament to ensure that both sides have adequate resources, as a core principle of levelling the playing field.
On September 21st, 2016. See this statement in context.