Alibaba demotes top executive after probe into behaviour, source says

SHANGHAI (Reuters) - Chinese e-commerce giant Alibaba Group Holding Ltd has demoted Jiang Fan, one of its most senior executives, after an internal investigation into allegations of improper behaviour, according to a person familiar with the matter.Alibaba removed Jiang, who oversaw the company's main online shopping divisions, from a partnership of 38 people, which appoints some Alibaba board members. It also demoted him to group vice president from group senior vice president, said the person,..