Royalty
Royalties are payments for use that the "licensee" pays to the "licensor" (seller of the license, patent) for the ongoing use of assets, most often intellectual property rights. Royalties are usually paid as a percentage of gross or net sales generated from the use of the asset or as a fixed price per unit sold.
If the published monograph is placed in closed access, an agreement is concluded on the payment of royalties from the sale of electronic copies of the monograph within the products EBSCOhost.