Multi-period efficiency and Malmquist productivity index in two-stage production systems
This paper measures the efficiency and MPI of a multi-period two-stage system. The multi-period efficiency is a weighted average of the efficiencies of individual periods. The overall MPI between two periods is the product of two process MPIs. The sources of inefficiency are identified from efficiency decomposition.
efficiency malmquist productivity index two-stage system data envelopment analysis parallel system