5. Discussion and conclusions
Drawing on the RBV, the KBV and the Contingency Theory, this study sheds light on the antecedents of OI and its consequences on firm performance. Within the organizational context, the results revealed that organizational factors have different impact on innovation climate. Commitment-based HR practices have a positive influence on innovation climate, with incentive and development HR practices having a stronger effect than selection HR practices. A possible explanation to this may be that selection practices focus more on assessing the candidates' fit to the company while incentive and development practices emphasize more on motivation and long-term growth (Collins and Smith, 2006). These findings are consistent with previous studies that suggest that HR practices with commitment orientation help to motivate employees to socially interact while developing their day-to-day tasks (Camelo-Ordaz et al., 2011). Thus, building an adequate work environment is key for enhancing human capital creativity and innovativeness (Ceylan, 2013; Dul et al., 2011). In contrast, the effects of interdepartmental connectedness and centralization of decision making on innovation climate were found to be non-significant. These findings depart from existing studies analyzing the organizational antecedents of innovation, which suggest that various internal organizational structures such as interdepartmental connectedness and centralization are critical to facilitate the appearance of exploitative and explorative innovations at the firm level (Atuahene-Gima, 2003, 2005; Jansen et al., 2006). This may be explained because previous works have focused on large firms (Jansen et al., 2006) and, within that specific context, coordination mechanisms are more formal than it could be in the case of SMEs. This argument is in line with previous literature, which suggests that SMEs are less bureaucratic and more internally adaptive than larger firms (Chang et al., 2011; Moilanen et al., 2014), while the latter have internal structures that over time become laden with rules and procedures (Morris et al., 2008).