Chen, Chyi-MeiChyi-MeiChenSHAN-YU CHOULu Hsiao2018-09-102018-09-102008-101680-8479http://scholars.lib.ntu.edu.tw/handle/123456789/343329Coupons and Rebates: An Incentive-based Theory of Promotion InstrumentsBrand Equity: Definition, Valuation, and Equilibrium Efficiency in a Duopolistic Industryconference paper