China may be seen as a potential mediator in the Middle East but economic integration within the region is more likely to drive change there, according to observers at the World Economic Forum’s annual meeting in the northeastern Chinese city of Dalian. The “Summer Davos” gathering in Liaoning province this week comes as Washington and Tehran try to reach agreement on Iran’s nuclear programme and the reopening of the Strait of Hormuz. The two countries have agreed to halt fighting “on all...