Minimum Advertised Price. Companies set a minimum price forwhich a product can be sold. The arguments are that it protects smaller shops from being undercut by mega stores and Internet retailers, and puts a premium on service and fitting. PING has been very agressive at enforcing their MAP policy. But the retailers who always make news when they get their account closed are the smaller stores, like the store that was giving discounts to military personelle. Of course, what fails to get mentioned is the PING must enforce all violations or the policy can be attacked as discriminatory and price setting.