In this paper a martingale approximation is used to derive the limiting distribution of simple positive eigenvalues of the sample covariance matrix for a stationary linear process. The derived distribution can be used to study stability of the common factor representation based on the principal...

In this paper a martingale approximation is used to derive the limiting distribution of simple positive eigenvalues of the sample covariance matrix for a stationary linear process. The derived distribution can be used to study stability of the common factor representation based on the principal...

The paper describes the results of estimation of a factor-augmented vector autoregressive model that relates the markup on mortgage loans in national currency, granted to households by monetary financial institutions, and 1-month inter-bank rate that represents the cost of funds for financial...

In this paper the recurrent explosive behaviour of debt-to-GDP ratio is tested in three countries with a long fiscal record: Sweden, the UK and the US. The testing is based on the method developed by Phillips et al. (2015) which is new in this context. The method allows us to avoid the size...