In this paper, we measure and analyse profit efficiency and productivity of Vietnamese banks using a newly developed index approach which is based on the directional distance function. Our findings indicate that the average bank operates quite far below the frontier of the best-practice bank,...

This paper introduces a new parametric measure of productivity change using the hyperbolic distance function. More specifically, the paper first estimates a stochastic translog hyperbolic distance function, which satisfies regularity conditions, using the Bayesian approach. Then it derives an...