摘要：随着市场经济日益发展，各种商品销售商的竞争越来越激烈，传统的销售方式已经不再具有竞争实力，孕育而生的是多种多样的促销方式。打折、优惠券等诸多促销方式的定性研究已经成为各个商家追逐利润的焦点问题，但是与之相应的定量研究却还比较匮乏。面对促销定量研究落后于实际需求的现实情况，本文针对几种常见的促销方式进行定量分析，并根据其特点建立了相应的折扣模型。通过对折扣率的计算，比较这几种促销所能为消费者带来的优惠。

关键词：促销; 消费者; 商家; 折扣率; 定量分析

Abstract：Along with the development of market economy, the competitions between various dealers are more and more drastic. The traditional way of sale is no longer competitive, so there are various sales promotion modes. The qualitative examination of sales promotion , such as discount and coupons, has become the focus of chasing profits businessman. But the quantitative analysis of these sales promotion is very little. Face the current situation that the quantitative research is behind the actual demand, this paper want to make quantitative analysis for several common ways of the sales promotion. And according to the characteristics, it can establish appropriate discount rate model. Through the calculation of the discount rate, it could tell us the preferential prices of each sales promotion.

Key words; promotion; consumer; dealer; discount rate; the quantitative analysis