A SENIOR Chinese economic think-tank on the Hongkong economy is considering co-operation in research projects with the influential Business and Professionals Federation (BPF). The move flows from the release of the BPF's far-ranging Hongkong 21 - A Ten Year Vision and Agenda for Hongkong's Economy. Mr Zheng Weirong, director of the Research Institute of the State Council's Hongkong and Macau Affairs Office, yesterday said the Chinese Government would study carefully the recommendations in the BPF report. The report suggested Hongkong should take advantage of the boom in Guangdong and China's growing economic role in the global scene. Mr Zheng, who is also vice-president and secretary-general of the national research society, would conduct research on the report and study whether the Chinese Government could do anything to help realise proposals in the report. His research society would consider co-operating with the BPF to organise a middle-scale conference in China to study the analysis and proposals in the report. ''We will invite economists and specialists from the mainland and Hongkong to attend the conference,'' Mr Zheng said. ''After the conference, the research society will study the possibility of seeking further co-operation with the BPF in conducting joint research projects on Hongkong's economy.'' However, Mr Zheng said the timing of the conference had yet to be fixed because the Chinese Government had not received the report, although BPF chairman Vincent Lo Hong-sui had discussed it with Chinese officials. Mr Zheng added that there should be greater co-operation between the business sector in Hongkong and the research institutes in China to conduct joint research projects on future economic development strategies for Hongkong. In response to its proposal that institutional links between the Guangdong and Hongkong governments should be strengthened, Mr Zheng said non-governmental instead of official links should be set up to enhance economic co-operation between the two places.