Wybrane miary niestabilności sektora bankowego

Disorders in the global financial markets, increasing the systemic risk and strong interdependence of financial institutions paid attention to the problem of the financial system instability. It is pointed out that the main source of financial instability are problems in the banking sector. Recognition the banking sector as the most important channel for the transfer of impulses that determine the risk of financial instability, indicates the existence of the phenomenon of the banking sector instability. Difficulties in identifying and estimating the scale of instability are a result of lack of clear and widely recognized quantitative measures. The study presents measures which may be used to identify and estimate the scale of banking sector instability based on selected positions from the annual reports of the 20 largest banks in the world in terms of total assets in 2011 ranked by Global Finance. It was analyzed banks' indicators such as capital adequacy, financial leverage and profitability indicator ratios: ROA and ROE. Aggregated data of individual institutions can be generalized to the entire banking sector.