This report presents the findings from a cross-sectional survey funded by CIMA. The project aimed to survey senior management accountants working across a range of organisations and industries with a unique focus on the behavioural side of decision making in the context of strategic investment decisions (SIDs). The focus is on how decision judgements are reached. This study contributes to our knowledge about the importance of the organisational context, the psychological processes, and the group behaviour of multiple managers involved in the SID process. Stages six and seven are typically more reliant on the objective analysis familiar to all management accountants. Other stages which CIMA members are increasingly involved in, especially where they are undertaking a broader managerial role in their organisation, are more open to managerial judgement influences. This study builds upon prior case-based research that has been reviewed to provide a conceptual basis for future SID research. (PDF 100KB)