The bustling, cosmopolitan business hub of Hong Kong might be losing its shine among foreign companies and expatriates with its stringent COVID-19 restrictions requiring up to 21 days of quarantine for new arrivals. The restrictions are discouraging visitors and business travelers, and add to other challenges that the territory faces as Beijing exerts ever more control over it. For months, business circles have been urging the authorities to relax some quarantine restrictions, saying that the territory risks losing some of its international talent and appeal as a regional financial hub. Some f...