Most Wanted Response
From Market Ruler Help
Most Wanted Response (or MWR) is what a web site owner or site operator wants the visitors to their web site to do. This is also called a Conversion Action.
For example, if I run an informational site which publishes a newsletter, then my Most Wanted Response is for a web site visitor to sign up for my newsletter.
If I run a online store, then my Most Wanted Response is for a visitor to purchase something.
See also Conversion Action.