An internally consistent approach to the estimation of market power and cost efficiency with an application to U.S. banking. - Efthymios G. Tsionas; Emir Malikov; Subal C. Kumbhakar (Eur. J. Oper. Res., 2018)

Endogenous dynamic efficiency in the intertemporal optimization models of firm behavior. - Mike G. Tsionas; Emir Malikov; Subal C. Kumbhakar (Eur. J. Oper. Res., 2020)