5. Conclusions and recommendations
5.1. The establishment of the research hypotheses H1a has not proven that the effect of relational capital and cognitive capital on innovation performance is not significant, but in the main effect model, they are positively and significantly correlated to innovation performance (as shown in Table 4). It indicates that intellectual capital and psychological safety play a fully mediating role in the effect of relational capital and cognitive capital on innovation performance. The positive effect of structural capital on innovation performance has been proven, but after the intermediary variable is added, the original relationship has been weakened. It suggests that intellectual capital and psychological safety play a partially mediating role in the effect of structural capital on innovation performance. The H2a of this research has been supported; it indicates that the social capital of COP plays a significant support role for practitioner's intellectual capital. In H3a of this research, the positive correlation of relational and structural capital and psychological safety has been proven, but the effect of cognitive capital on psychological safety has not been supported. H4 and H5 have been supported. It indicates that the intellectual capital and psychological safety play a significant support role for innovation performance.