Does An Adwords/YouTube Branding Campaign Improve Maps Rankings?

In Semantic Mastery’s weekly Hump Day Hangouts episode 222, one viewer asked if an Adwords/YouTube branding campaign improves maps rankings.

The exact question was:

Bradley just want clarification on your Adwords/youTube branding campaign… is there correlation that they improve Maps Rankings? or is that dependent on where the traffic is directed at (Maps Listing, Home page with Maps embedded, etc)?