The best Weibull distribution methods for the assessment of wind energy potential at different altitudes in desired locations are statistically diagnosed in this study. Seven different methods, namely graphical method (GM), method of moments (MOM), standard deviation method (STDM), maximum...

Purpose This paper aims to examine the efficiency of Islamic vs conventional banks in Malaysia by unveiling the traditional efficiency concept – black box – with a three-stage network structure of bank operations. Design/methodology/approach This paper applies data envelopment analysis (DEA)...

The paper aims at examining the performance of Islamic Banks of Bangladesh in portfolio investment in the context of Dhaka Stock Exchange (DSE). Stocks of a total number of 26 listed companies have been purposively been selected for the study from the total number of 511 listed companies. Only...

Purpose: Data envelopment analysis (DEA) calculates the efficiency of a business unit if all the inputs are creating outputs within a “black box.” Under traditional DEA, the detailed process of that business unit is ignored. However, a network DEA can explain the black box structure and...