In the era of digital life and business，traditional management has become or is becoming data-centric management，and traditional decision-making has become or is becoming data-analytics-based decision-making． From the big data characteristics in light of its data nature，problem nature and managerial decision-making nature，this paper elaborates the paradigm shift of research and applications on managerial decision-making． The big data-driven paradigm is described from three aspects: external embedding，technology augmentation，and enabled innovation，to reflect a“correlation + causality”viewpoint in a“data-driven + model-driven”manner． In addition，the panoramic PAGE framework as well as its key elements are discussed with respect to the big data characteristics and important research directions．