Something to keep in mind as Australia's election year progresses.
From the Washington Post's Wonkblog:
Political ads: Not as powerful as you (or politicians) think: "Now, with the election returns in, we can begin to assess just what the presidential candidates and their allies got for the hundreds of millions of dollars they spent on TV advertising.
The short answer: surprisingly little. In all likelihood, even major shifts in advertising would have produced only minor shifts toward the candidate benefiting from those shifts."
'via Blog this'