JPMorgan analysts Alex Yao and Binbin Ding believe the "demographic dividend" internet growth in China has come to an end. As a result, the firm's focus will shift toward quality from quantity, i.e., customer engagement from user numbers.The brokerage picked up Alibaba Group Holding Ltd andTencent for demonstrating solid progress in increasing their user engagement by launching content and services. On the other hand, Baidu Inc (ADR) is witnessing a loss in the user engagement. The lead analysts think the companies are well-placed to take advantage of user engagement, including social media.Source