aim of the research discussed in this paper is to investigate the roles, responsibilities and practices of project … types and environmental complexity of organization with the practices, roles and responsibilities of Portfolio Manager … influence the roles, responsibilities and practices of the project portfolio manager. Based on these findings, a research model …

dissertation is to explicate the impact of organizational culture on employees' roles and subsequent role behaviors. I propose that … of their roles at work. I also suggest that culture strength, behavioral self-monitoring as well as P-O fit have an … impact on the extent to which employees enact the expected organizational work roles. Data from about hundred different …

. Moreover, we develop a taxonomy that helps analyse how the different functional roles of aggregators create economic value. We … significant economic value. However, some of the functional roles that aggregators currently fill may become obsolete once market …