1. Couponing as a Promotional Tool: Consumers Do Benefit;John H Antil;The Journal of Consumer Affairs,1985
2. The Costly Bargain of Trade Promotions;Robert Buzzell;Harvard Business Review,1990
3. Price Advertising and Coupons in a Monopoly Model;Ramon Caminal;Journal of Industrial Economics,1996
4. Assessing the Profitability of Retailer Couponing with A Low-Cost Field Experiment;Randall G Chapman;Journal of Retailing,1986