I should think that actually having academics access to the internal effectiveness metrics would in and of itself be hugely beneficial. - what is the range of

I should think that actually having academics access to the internal effectiveness metrics would in and of itself be hugely beneficial. - what is the range of ads to be served like? I rmeber thebfounder of duck duck go saying lack of PII made little difference to him - someone is searching for "PC Monitor" then the range of ads seems pretty obvious. Is this true in "persuasive" mode? Are there bidders trying to serve political ads or lingerie when I search for a monitor? How can you tell? - is this a zero sum arms race ? A study I cannot find should that Political races are decided by who the public prefers not by total spend. Congressional races showed that if ad spend was matched the winner stayed consistent - it's only when one side out spent the other did ads have an effect. If I am outraged by ad X do ai also get served the anti-X advert? Would it work if I was? (this is the equalicalent of how many adverts saying fruit and vegetables are good for you outweighs adverts for sugary drinks? There is probably a lot of metrics out there on that - how comparable is it?) good luck