http://wenku.baidu.com/view/a0a97618650e52ea551898f5.html
http://wenku.baidu.com/view/dc3962104431b90d6c85c720.html 【部分内容展示】
Why the increase in Sales Promotion?
Growing retailer power
Declining brand loyalty
Increased promotional sensitivity
Brand proliferation
Fragmentation of consumer market
Short-term focus
Increased managerial accountability
Competition
Clutter
……