The Hong Kong government’s plan to speed up the construction of the rail backbone of the Northern Metropolis near the border with mainland China will make the megaproject more appealing to developers, but whether they will be persuaded to invest is another matter, experts have said. Amid a depressed property market, developers have voiced concerns over their profit margins if they commit to building in the hub, which Hong Kong and Macau Affairs Office Director Xia Baolong urged the city to...