A Study Of The Bank Systemic Risk Affected By Information Dissemination

The frequent financial crisis has brought a severe blow to the real economy in recent years.With the economic marketization,risk events also occur constantly in China's financial market,and the factors that affect systemic risk are numerous and complex.However,the spread of negative information is one of the main reasons for the increase in risk.However,there have been relatively few studies on relevant literature in the past and there are fewer studies on the Chinese banking market.Under this background,studying the impact of information dissemination on the systemic risk of banks will help prevent financial risk and provide reference for the further integration of systemic risk.The object of my research is the bank.Simulate the actions that other banks may take when a bank going bankrupt,and then analyze the impact of these actions on the system.In this process,we reviewed the literature on information dissemination and systemic risk.Based on relevant theories,we built a bank-scale-free network by the maximum entropy using balance sheet of china.When a bank goes bankrupt,it simulates what other banks may do,then measures systemic risk using the DebtRank model,and analyzes results.The main conclusions of the study are:(1)When faced with a bank's negative information,the actions that other banks may take will have an impact on systemic risk.systemic risk is biggest that other banks demanded that the risk of bank repayment in advance,followed by other banks that did not take any measures,and the smallest was that banks directly reduced their links with risk bank.And the divestment of other banks will trigger more bankruptcy of new banks.(2)The greater the degree of negative information(?),the greater the systematic risk,but not the strict linear relationship.(3)Risk infection is the key to systemic risk.Compared with static networks,the difference is mainly due to the difference in risk contagion when dynamic network.(4)Information attenuation coefficient,information value,and risk position all have impact on systemic risk.Based on the above conclusions,a series of policy recommendations are proposed.