- rallywilLv 71 decade agoFavorite Answer
Business Dictionary: Flat Rate
In general: per unit price that remains the same regardless of the quantity purchased or other considerations. Many products are sold at variable rates that decline as the number of units purchased increases. Paper is usually sold at a variable rate. See also Variable Pricing.
Advertising: fixed price of nondiscounted advertising space or time.
Direct marketing: fixed cost for a list rental regardless of the number of names remaining after a merge/purge is performed. A flat rate is usually used only for small lists typically of fewer than 10,000 names.Source(s): http://www.answers.com/topic/flat-rate