Further Reflections on Cash Discounts
针对Grant教授指出的零售商接受现金、支票或信用卡时产生的安全及其他成本，本文在附录中将这些因素纳入最优折扣计算。
PROFESSOR Grant (1985) correctly points out that retailers incur security and other costs related to the acceptance of cash, check, or credit card. Therefore, the financial difference to the retailer of the various payment methods is not simply the factoring fees and delayed remuneration associated with credit card purchases. In the Appendix we formally incorporate these complications in our computation of the optimal discount.