Unlike other pricing models, it is suitable for mass strategies. Some players of the advertising ecosystem buy CPM ad space which they then resell to advertisers on a CPC basis (Criteo, for instance).
CPM (Cost Per Mille)
Cost Per Mille (CPM), or Cost Per Thousand (in Latin, “mille” means “thousand”), is an online advertising pricing model that refers to the cost an advertiser has to pay for one thousand impressions of an ad.