This paper makes an empirical investigation into the influence of service innovativeness on the relationship between market orientation and innovative performance, first as a moderator with specified interaction effects, and secondly as a mediator in the path from market orientation to innovative performance. A sample of 169 new service development (NSD) projects in Chinese knowledge-intensive business service firms provides the data for an empirical test of these issues. The results indicate that service innovativeness does not play a moderating role in the relationship between market orienta...