I am on leadimpact and say I wanted to advertise on Yahoo.com
Say there are quite a few bids on yahoo.com with the highest being 0.02
Now, if I would go and bid 0.015 on yahoo.co would I still get the whole traffic or only if I bid 0.021 on yahoo.co
Only if you bid 0.021 on yahoo.co , and you will get most of the traffic , not all of it.