Barros, Carlos P.; Liang, Qi Bin; Peypoch, Nicolas - In: South African Journal of Economics 82 (2014) 3, pp. 443-454
This paper analyses technical efficiency in Angolan banks from 2005 to 2010 with an innovative production frontier model, the <math xmlns="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" altimg="urn:x-wiley:00382280:media:saje12034:saje12034-math-5002" display="inline" overflow="scroll" wiley:location="equation/saje12034-math-5002.png"> <mrow> <mi mathvariant="double-struck">B</mi> <mtext>-convexity</mtext> </mrow> </math> model. The intermediate approach is adopted. It is observed that the efficiency increases over the observation period, according to the international...