TY - JOUR AB - This article presents four basic innovation leadership styles: charismatic, instrumental, strategic and interactive innovation leadership. The leadership styles and their characteristsics relate to process and product innovations in construction projects. A theoretical framework – which synthesizes these relations – enables explorative research into the effects of leadership on organizational innovativeness. Four case studies, observing the same manager in four comparable projects, explore the effects of each leadership style on a construction project’s innovativeness in ecological terms. On an analytical level the case study explorations indicate that a manager’s consistent performance of a leadership style stimulates the project’s ecological innovativeness when the manager also injects the project with ecological information, knowledge and competence. It also indicates that a manager’s consistent performance of a leadership style, without an injection of information, knowledge and competence in the project, does not stimulate the project’s ecological innovativeness. VL - 4 IS - 4 SN - 1471-4175 DO - 10.1108/14714170410815105 UR - https://doi.org/10.1108/14714170410815105 AU - Bossink Bart A.G. PY - 2004 Y1 - 2004/01/01 TI - Effectiveness of innovation leadership styles: a manager’s influence on ecological innovation in construction projects T2 - Construction Innovation PB - Emerald Group Publishing Limited SP - 211 EP - 228 Y2 - 2024/04/23 ER -