What means compensation (or economic model) "display", "click", "lead", "fixed sale", or "sale %" ?

There exist various means of compensation of the associates diffusing a campaign: - Display: the compensation is based on the number of displays of the diffused banners - Click: the compensation is based on the number of single clicks on the diffused banners - Lead: the compensation is based on the recorded action figure or leads, a lead which can be the coordinates of a prospective customer, a request for estimate,… - Fixed or rating sale : the compensation is based on the product purchase of the advertiser carried out following the click on the diffused banners. The amount of the profits can be fixed (for example, 10€ by sale), or proportional to the bought product prices (for example 3% of the sale). It is generally the advertiser which defines the various parameters of a campaign (mode of compensation, value of the compensation, formats advertizing,…).