4. Discussion and conclusion
The results of this study show that KIBS firms engage in different forms of innovation and that the obstacles encountered by KIBS firms vary from one form of innovation to another. First, we showed that KIBS firms very actively engage both in technological (product and process innovations) and non-technological forms of innovation (delivery, strategic, managerial, and marketing innovations). Second, the results of this study reveal that, overall, financial obstacles are negatively related to product and process innovations, and the knowledge obstacles tend to be negatively associated with delivery, strategic, managerial, and marketing innovations. Finally, the results regarding the marginal impact of the factors that were statistically significantly related to innovation indicate, overall, that the marginal impacts of the knowledge obstacles on delivery, strategic, managerial, and marketing innovations are comparable or higher than the marginal impacts of the financial obstacles on product and process innovations.