“…ese methods have been widely used, but the logic of dealing with complex problems is often not strict enough; therefore, some scholars choose quantitative analysis. Altman's Z-scores [10] are expounded by Ni et al [11]; these classical bankruptcy prediction models (for instance, Springate and Meachin [12], Saladi and Yarlagadda [13], and Legault and Kirton [14]) are widely used by researchers [15]. Meanwhile, structural models, e.g., the Merton, Black-Cox, Leland-Toft, Longstaff-Schwartz, flat barrier, and Geske models, are hot applications in bankruptcy prediction.…”