Abstract T his paper empirically examines the impact of dependence structure between the assets on the portfolio optimization, composed of Tehran Stock Exchange Price Index and Borsa Istanbul 100 Index. In this regard, the method of the Copula family functions is proposed as powerful and flexible tool to determine the structure of dependence. Finally, the impact of the dep...

Employing data on over 100 GCC banks for 1996e2011, we test the relation between risk and capital. Given the interlinkage between these two variables, the model employs a 3SLS estimation that takes on board this simultaneity. Consistent with the literature, risk is measured by the Z-score, while capital is computed as the ratio of equity to asset. The findings indicate that banks generally incr...

BORSA initially described nonheteroresistant strains of S. aureus with oxacillin MIC <2 mg/L, which produce ample β-lactamases and are rendered fully susceptible to PRP by β-lactamase-inhibitors (4,6). Subsequent BORSA strains described have had higher oxacillin MICs (4–8 mg/L) (4). The proportion of BORSA among clinical isolates of S. aureus varies (1.4%–12.5%) but is usually ?5% (4,10). A BOR...

Forecasting price changes is very important for the process of estimating and managing market risk in financial markets. Price markets may also depend on non-market factors. Considering this situation, study investigates effect COVID-19 pandemic Borsa Istanbul. It tackles fractal dimensions time series obtained with daily closing prices stocks traded Istanbul (BIST). According to results sector...