Explain the scope needs and requirements of affiliate marketing?

In affiliate marketing, a publisher is paid a commission by a merchant for each visitor that the publisher refers to the merchant's website. Also called pay-per-performance marketing or cost-per-action marketing, affiliate marketing is a great way to generate a solid income while doing something you enjoy, whether it's writing about your favourite movies or running your own blog. It allows you to use a merchant's products or services to earn a commission without having to actually sell them. In affiliate marketing, you have the ability to use specific keywords that focus on a specific subject and then write about it.