The Ram ad mainly had better production values, after the company commissioned 10 photographers to grab fantastic photos from fields and barns and rangeland and roadsides across the United States.

FORBES: Chrysler, Farm Site Join Ranks Around Super Bowl 'Farmer' Ad

Investors will thus need to ponder whether its mainly computer-based ad business justifies such a lofty valuation.

ECONOMIST: Valuing Facebook

Japanese clients have cared far less than western ones about conflicts of interest because they have used ad agencies mainly as media-space securers rather than brand defenders.

ECONOMIST: Promoting brands