Hong Kong should take a more proactive approach to removing barriers hindering the cross-border flow of people, capital, goods and data with neighbouring Shenzhen, analysts have said, as the new leadership of the mainland China tech hub signals a fresh push for deeper integration. The calls for action followed the appointment of Jin Lei, an economist and former official in Sichuan province, as Shenzhen’s Communist Party chief last month, succeeding Meng Fanli, who has since been named the...