CBT is foremost applied with banners, emails, text links,, and opt-in email advertising. Although opt-in e-mail advertising is more commonly charged on a cost per action (CPA) basis, sometimes CPT is ...

Assessing the COVID-19 crisis to prevail, and envisioning a slow return in terms of profit, there are Vloggers who have resorted to the Cost-per-Action (CPA) model, to earn revenues. Since brands ...