China is to impose a quota on investments by its citizens on the Hong Kong stock market – a decision that will reduce capital outflows to a small proportion of the $100bn-plus forecast when the outward investment scheme was announced last month. Liu Mingkang, chairman of the China Banking Regulatory Commission, said there would be no limit on investments by individuals. But he said there would be tight controls on the total amount invested through the scheme. Mr Liu said there would be a “quota in general” and when that was reached, the government would reassess the activity in the market.