H. Ibarra, NETWORK CENTRALITY, POWER, AND INNOVATION INVOLVEMENT - DETERMINANTS OF TECHNICAL AND ADMINISTRATIVE ROLES, Academy of Management journal, 36(3), 1993, pp. 471-501
The reported research investigated the relative impacts of individual
attributes, formal position, and network centrality on the exercise of
individual power, measured as involvement in technical and administra
tive innovations. Centrality was more important for administrative inn
ovation roles, and rank and centrality were indistinguishable in their
effects on technical innovation roles. Centrality also appeared to me
diate the impact of individual attributes and formal position on admin
istrative innovation roles to a greater extent than it mediated their
impact on technical roles. Results suggest that an organization's info
rmal structure may be more critical than its formal structure when the
exercise of power requires extensive boundary spanning and that sourc
es of power have both general and innovation-specific effects.