We analyse the efficiency of the branches of a local bank in Cologne, Germany, using a novel two-stage Data Envelopment Analysis (DEA) approach. Traditional DEA studies frequently found that most branches of a bank were efficient, which led researchers to conclude that banks are usually "well...

This paper presents a linear programming approach to analyze and optimizeow lines with limited buer capacities and stochastic processing times. The basic ideais to solve a huge but simple linear program that models an entire simulation run of amulti-stage production process in discrete time, to...