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ABSTRACT The purpose of this paper is to show that within a systems dynamics approach it is possible to reconcile the positivist determinism and the management sciences constructivist project, this relying on the “Securities - Liquid assets – Projected cash flows” conceptual model. The challenge is to set up systemic links between the management practices and these two well known methodological approaches in order to form a pragmatic understanding. This helps solving the economic self production issue and not to dissociate solely objects between themselves and from their environment. The latter process leads to a blind and cost killing perception originating crisis such as we know them.