Construction of a Fundamental Quantitative Evaluation Model of the A-Share Listed Companies Based on the BP Neural Network

Table 1

Corporate life cycle judgment by the combination of cash flow components.

	Start-up	Growth	Mature	Recession
Net cash flow from operating activities	−	+	+	−	+	+	−
Net cash flow from investment activities	−	−	−	−	+	+	+
Net cash flow from financing activities	+	+	−	−	+	−	−