Purpose – The purposes of this study are twofold: first, the authors attempt to confirm the effect of the income elasticity of demand in the retail industry by investigating the performance of department stores; second, the authors measure and benchmark the performance of individual department...

Purpose The purpose of this paper is to measure the comparative efficiency of 18 Korean commercial banks under the presence of negative observations and examine performance differences among them by grouping them according to their market conditions. Design/methodology/approach The authors...