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Re:What do we really know about the effectiveness of digital... by tomrod on Wednesday November 06, 2019 @07:31PM (#21469202)
As the other commentator identified, you work @ FB -- could you please provide the following three scatter plots to support or disprove your claims?:

(1) Size of Company vs. ROA

(2) Advertising Expenditure by Company vs. ROA

(3) [Advert %] vs. ROA

I hypothesize you'll see a rapidly decreasing return on advertising due to size, and would love to be proven wrong.

Re:What do we really know about the effectiveness of digital... by davidedicillo on Wednesday November 06, 2019 @11:59PM (#21470540)
Not at FB anymore but I would assume your hypothesis isn't too far from the truth. It's also true that there are hundreds of thousands of small businesses that thrive thanks to online advertising.
Re:What do we really know about the effectiveness of digital... by tomrod on Thursday November 07, 2019 @05:48AM (#21472084)
The US currently has about 25M small businesses. How many of them use digital advertising? What testing is done to ensure their ROA isn't a waste?