There are inconsistent research findings regarding comparison of sales promotion effectiveness between coupons and sweepstakes in previous research literature.
现有文献针对抽奖促销与优惠券促销的促销效果比较研究并没有形成一致性的研究结论。
参考来源 - 消费者对促销的反应及促销效果研究·2,447,543篇论文数据，部分数据来源于NoteExpress
你在帮助别人,就会得到一些很好的促销效果。
用参数来检验广告促销效果的显著性，由于假设性限制难以满足，致使有效性下降。
The limits of parameter test of AD effect on expanding commodity sales usually lead to lowering of efficiency.
针对目标客户群选择合适的广告媒体，可以用较低的广告费用获得较好的广告促销效果。
Selecting suitable advertisement media according to target customers, is helpful to achieve a preferable promotion effect at a lower fee.
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