I'm not going to speculate, because it's not a “one dimension” reason. There are multiple reasons, as we've discussed before, of which transfers are certainly one of the stimulants, if you like, of consumption. I'm not going to speculate because I don't have that, and maybe others are better positioned to do the what-if scenario than we are.
Evidence of meeting #12 for Finance in the 44th Parliament, 1st Session. (The original version is on Parliament’s site, as are the minutes.) The winning word was cpi.
A video is available from Parliament.