In credit default prediction models, the need to deal with time-varying covariates often arises. For instance, in the context of corporate default prediction a typical approach is to estimate a hazard model by regressing the hazard rate on time-varying covariates like balance sheet or stock...

In the research, a conceptual model with the export performance scale EXPERF (Export Performance Scale) being the dependent variable and with country credit ratings being the independent variables has been developed, and it is intended to empirically investigate the impact of the country credit...