| Work | Year | Features | Feature type |
| Edmister [4] | 1972 | 19 accounting ratios | Financial information |
| Altman and Sabato [5] | 2007 | 17 accounting ratios | Financial information |
| Chen et al. [23] | 2010 | Current liability, equity, asset, and closing stock price | Financial information |
| Psillaki et al. [10] | 2010 | Preinterest, pretax operating surplus/total assets, tangible assets/total assets, intangible assets/total assets, net growth, firm size, and managers background | Financial and nonfinancial information |
| Altman et al. [7] | 2013 | 31 accounting ratios and 10 credit related variables | Financial and nonfinancial information |
| Hajek and Michalak [6] | 2013 | Enterprise size, enterprise reputation, profitability ratios, asset structure, business situation, market value ratios, and working experience | Financial and nonfinancial information |
| Moro and Fink [13] | 2013 | Economic and social environment, enterprise characteristics, and characteristics of the relationships between the loan manager and the SME manager | Financial and nonfinancial information |
| Angilella and Mazzù [24] | 2015 | Intangible assets/fixed assets, R&D/sales, ROA, short-term debt/equity, cash/total asset, development risk, production risk, technological risk, and market risk | Quantitative, financial, and nonfinancial information |
| Cultrera and Brédart [25] | 2016 | Current ratio, return on operating assets before depreciation, global degree of financial independence, proportion of gross value assed allocated to tax expenses, cash flow/total debt, business sector, enterprise size, and enterprise age | Financial and nonfinancial information |
| Gupta and Gregoriou [26] | 2017 | EBITDATA, taxes/total assets, total liability/total assets, short-term debt/equity book value, market-to-book ratio, excess return, standard deviation of past three months daily return, and price per share | Financial and nonfinancial information |
| Tsai and Wang [18] | 2017 | News information | Textual information |
| Letizia and Lillo [20] | 2017 | Enterprise payment relation | Relational information |
| Tobback et al. [21] | 2017 | Enterprise common shareholders and directors’ relation | Relational information |
| Yin et al. [19] | 2020 | Current ratio, quick ratio, debt asset ratio, receivables turnover ratio, total asset turnover, operating profit ratio, missing ratio, enterprise age, registered capital, enterprise location, number of shareholders, number of insured, number of patents, and enterprise legal judgment | Financial, nonfinancial and textual information |
| Kou et al. [22] | 2020 | Basic enterprise information, managers/shareholders information, payment, and transactional information | Financial, nonfinancial and relational information |
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