The Effect of Macroeconomic Variables on Credit Default Cycles in the Country's Monetary Market

 The main challenge facing the country's banking system is credit default or the possibility of defaulting borrowers from fulfilling their obligations to the banking system, known as credit risk. Therefore to control credit risk, the factors influencing this type of risk must be identified. Several factors affect credit default in the non-government sector. This study examines the asymmetric effects of macroeconomic factors using Markov-switching and ARDL methods in the quarterly period of 2000 to 2017 on credit default. The results show that inflation, exchange rate, unemployment rate, and credit growth rate in Wilson's linear model have a negative effect on the default rate and the economic growth rate does not have a significant effect on the default rate. According to the nonlinear model, during the recession, rising economic growth rate, inflation rate, and unemployment rate reduce the credit default rate and increase the exchange rate and credit growth rate on the default rate, while during inflation, economic growth rate and inflation rate. It has no significant effect on the default rate, and the exchange rate and the growth rate of reverse communication credits and the unemployment rate are directly related to the default rate during inflation.