Purpose Given the important role of knowledge sharing (KS) processes for organizational innovation, the purpose of this study is to investigate the mediating roles of tacit and explicit KS in bridging the relationship between high-involvement human resource management (HRM) practices and specific aspects of innovation capability, namely, product and process innovation. Design/methodology/approach Analysis of moment structures and structural equation modeling are applied to examine the correlation among the constructs based on the survey data collected from 111 manufacturing and service firms. Findings The empirical findings reveal that KS processes positively mediate the relationship between high-involvement HRM practices and innovation capability. It highlights the important role of explicit KS in fostering aspects of innovation capability compared to the effects of tacit KS on aspect of innovation capability. Practical implications Vietnamese firms should pay much attention to high-involvement HRM practices to improve their innovation capabilities. In addition, fostering the willingness of employees for sharing tacit knowledge (e.g. experiences, uncommon understandings and insights) and explicit knowledge (e.g. formal information, official documents and reports and procedures and policies) is one of the most optimal solutions for firms to pursuit product and process innovation capability. Originality/value This paper significantly contributes to increasing knowledge and insights on the correlation between high-involvement HRM practices and specific forms of innovation. The understanding on mediating role of KS processes contributes to advancing the body of knowledge of HRM practices and innovation theory.

PurposeGiven the important role of change capability for organizational development and competitive advantage, the purpose of this study is to clarify the influences of transformational leadership (TL) on organizational change capability (OCC) via mediating roles of two specific aspects of trust in leadership namely disclosure-based trust and reliance-based trust.Design/methodology/approachStructural equation modeling is applied to test the degree of influences of TL and employee trust on OCC via empirical data collected from 376 participants in 115 small and medium firms in China.FindingsThe results show the positive and significant impacts of TL and aspects of employee trust in leadership on OCC. It indicated that disclosure-based trust in leadership has a greater influence on change capability in comparison with the effect of reliance-based trust in leadership. Especially, the findings have shown the evidence supporting the mediating mechanism of aspects of employee trust in leadership between TL and OCC.Research limitations/implicationsThis study provides the practical initiatives that highlight the importance of applying TL style to build and improve the trust of employees in their leadership for fostering OCC.Originality/valueThe paper has significantly advanced and deepened insight of how transformational leaders nurture employee’s specific shades of trust in leadership for fostering OCC. The valuable findings of this study contribute to enriching the theoretical basis of organizational behavior and change management, and can be used to analyze and explain the relationships between TL, employee’s trust in leadership and organizational capability for change.