BEIJING – Chinese e-commerce giant Alibaba has not released full sales figures for its annual Singles Day event for the first time ever, as a cooling economy dampened demand. Launched in 2009, Singles Day is the world’s largest shopping festival, dwarfing similar United States events such as Black Friday and Cyber Monday in terms of sales. Alibaba’s sales last year hit 540.3 billion yuan (S$104.3 billion), and many were watching to see if the company and other retailers taking part could combine for a record one trillion yuan in sales. In a statement on Saturday, Alibaba said results for this...