When he trotted it out before it lasted all of 1 day. When people started pointing out that using his index the Carter years were better economicly than the Reagan years it was quickly dropped as they couldnt sell that. Even talking heads from the DNC went on TV to denounce it.
Kerry's has been dismissed, but the real one has NOT been promoted.
It summarizes the state of the economy in a single statistic.
And that summary is: We are doing great!
Hammering the airwaves with this will counter the lying Left.