This paper proposes a new methodology based on non-negative matrix factor- ization to detect communities and to identify Systemically Important Financial In- stitutions in the interbank network as well as within communities. The method is specifically designed for directed weighted networks and...

This paper proposes a new methodology based on non-negative matrix factorization to detect communities and to identify Systemically Important Financial Institutions in the interbank network as well as within communities. The method is specifically designed for directed weighted networks and it...

We study the international interbank market through a geometric analysis of empirical data. The geometric analysis of the time series of cross-country liabilities shows that the systematic information of the interbank international market is contained in a space of small dimension. Geometric...