Research on service value co-creation of knowledge-intensive business service system. Research on service value co-creation of knowledge-intensive business service system 并列题名：Research on service value co-creation of knowledge-intensive business service system Research on the value co-creation of logistics cluster service ecosystem Research on value co-creation of platform based business ecosystem Research of Knowledge Capacity in Knowledge-Intensive Business Services Research on the development of knowledge-intensive services 并列题名：Research on the value co-creation of logistics cluster service ecosystem Research on service innovation from the perspective of service ecosystem 并列题名：Research of Knowledge Capacity in Knowledge-Intensive Business Services