1. Li, J., Dong, Y., He, C.: More debt, more investment? Spatial differentiation of debt-investment behavior of real estate enterprises under housing financialization. Econ. Manag. (8), 171–189 (2020)
2. Nippani, S., Smith, S.D.: The increasing default risk of US Treasury securities due to the financial crisis. J. Bank. Finan. 34(10), 2472–2480 (2010)
3. Agrawal, K., Maheshwari, Y.: Default risk modelling using macroeconomic variables. J. Indian Bus. Res. 6(4), 270–285 (2014)
4. Wang, H., Huang, B., Yao, L.: Analysis of default and investor protection issues in China's bond market. New Finan. (10), 54–56 (2016)
5. Wang, X., Hou, S., Shen, J.: Default clustering of the nonfinancial sector and systemic risk: evidence from China. Econ. Model. (96), 196–208 (2021)