[Retracted] Security Warning Model of Chinese Corporate Bond Defaults Based on Deep Neural Networks

Table 1

Input variables.

Characteristics	Variable
Bond issuer	Monetary assets
	Net assets
	Total debt
	Interest-bearing debt
	Net operating cash flows
	Operating income
	Operating profit/loss
	Net profit/loss
	Operating profit margin
	Sales growth rate
	Current ratio
	Quick ratio
	Inventory turnover ratio
	Debt ratio
	Cash ratio
	Interest cover ratio
	Is it being audited?
	Is it an SOE?
	Is it a listed company?
	Industry
	Company rating before default
Bond	Trading place
	Issue size
	Outstanding balance
	Interest rate at issuance
	Is it a guaranteed bond?
	Bond rating before default
Intermediary agencies	Is the underwriter a top 10?
	Is the auditor a top 10?
	Audit opinion
Local government	Provincial government GDP
	Provincial government revenue
	Provincial government expenditure
	Provincial marketization index
	The relationship between provincial government and the market
Macro-economy	Total social financing
	Broad money M2