The Use of Mathematical Models in Marketing, Journal of Marketing
Marketing executives and mathematicians have joined forces in a search for improved decision models to handle such problems as new-product development, media selection, retail inventory control, and size of sales force. The author of this article explains and illustrates those operations research models which hold the greatest promise in the marketing area.
Kotler, Philip. 1963. The Use of Mathematical Models in Marketing. Journal of Marketing. 27(4): 31-41.