Measuring seaports' productivity a malmquist productivity index decomposition approach

Abstract

This paper uses three different Malmquist productivity index (MPI) decompositions to measure Greek seaports' productivity for the period 2006-10. Bootstrap techniques are applied in order for confidence intervals of MPIs and their components to be constructed, and to verify if the indicated changes are statistically significant. Finally, a second-stage nonparametric analysis is applied identifying the effect of seaports' size on their productivity levels. The results reveal that the number of terminals is a crucial determinant of seaports' productivity levels. Additionally, it appears that the high length of Greek seaports has a negative influence on their productivity levels over the years.