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This year Chinese e-commerce giant Alibaba rang up US$5 billion in sales in the first hour of its Single¡¯s Day e-commerce event. This annual e-commerce holiday, celebrated by Chinese consumers and retailers on November 11, rivals Cyber Monday in the US in total sales volume. ÖйúÒ»¼¶Æ¬ Professor of Marketing Jeongwen Chiang explains the fierce rivalry between China¡¯s e-commerce giants Alibaba and JD.com.