Some interesting statistics coming from the latest edition of PR Week. Matt Cartmell reports how new research has called in to question the effect of celebrity charity endorsements on young people. In a survey of over 1,000 British people ages 11-25, only 20% said they would support a charity because a celebrity endorsed it. Some interesting statistics coming from the latest edition of PR Week. Matt Cartmell reports how new research has called in to question the effect of celebrity charity endorsements on young people. In a survey of over 1,000 British people ages 11-25, only 20% said they would support a charity because a celebrity endorsed it.