Moreover, the foresee effect of assets scale is not obvious,the former research have overestimated prediction ability of models. So, the paper adopts non-paired samples because that it accords with the fact better.
而且资产规模的预示效应不明显,说明以往研究高估了模型的预测能力,使用非配对样本更符合实际情况,因此本文采用非配对样本。
参考来源 - 基于非配对样本的制造业上市公司财务困境预警研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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