“…Otherwise, it is defined as inefficient. Over the past several decades, various forms of DEAs, Charnes-Cooper-Rhodes (CCR) model [13] and Banker-Charnes-Cooper (BCC) model [14], have been used in a wide range of fields, such as banking [15], engineering [16], education [17], agriculture [18] and corporate administration [19]. The main advantages of the DEA are that it does not require any possible assumptions related to the structure of the production function, and the values of inputs and outputs can have different measurement units [20][21][22].…”