Data envelopment analysis is a method for evaluating the relative efficiency of a collection of decision making units. The DEA classic models calculate each unit’s efficiency in the best condition, meaning that finds a weight that the DMU is at its maximum efficiency. In this paper, utilizing the directional distance function model in the presence of undesirable outputs, the efficiency of each ...

This paper evaluates the scale of productivity change of the Bank of Serbia over the period 20072010. In this research the emphasis is put on measuring the productivity based on information from the financial statements using Data Envelopment Analysis (DEA) method and Malmquist index to estimate the individual bank efficiency and productivity changes within this period. The Malmquist productivi...

We review a variety of techniques to improve efficiency in information retrieval. Given the increasing volumes of data that are available electronically, understanding and using such techniques is critical. We address several efficiency concerns, but our primary focus is on index processing since it dominates the computational demands of information retrieval. Given the importance of index proc...

breeding based on selection indices is an effective method for improving complex traits such as yield. to assess the efficiency of different selection methods, 50 genotypes of tall fescue (festuca arundinace) were evaluated under two moisture conditions including full irrigation (normal environment) and deficit irrigation (stress environment). the experiment was conducted according to a randomi...

this paper talks about the measurement of efficiency and productivity of non-life insurance firms in india. this study is focused on twelve private non-life insurance firms and four public sector non-life insurance firms of india in the period 2008-09 to 2012-13. data envelopment analysis (dea) coupled with malmquist productivity index is used in measuring the efficiency as well as productivity...

The primary objective of this paper is to test informational efficiency of the A random walk test is performed for weak-form efficiency. In addition, day of the week effects are investigated to test semi-strong form efficiency. Empirical results verify that the İSE Composite Index is neither weak-form nor semi-strong form efficient although the nature and degree of inefficiency differ across pe...

Data envelopment analysis (DEA) is a technique for measuring the efficiency of decision making units. In all models of the DEA, for each unit under assessment, the numerical efficiency is obtained which may be less than or equal to one. Given the possible large number of functional units, we use various ranking methods for evaluating units. One of the rating methods is Balance index and Topsis....

the performance of a decision making unit (dmu) can be evaluated in either across-sectional or a time-series manner, and data envelopment analysis (dea) is a useful method for both types of evaluation. the malmquist productivity index (mpi) evaluates the change in efficiency of a dmu between two time periods. it is defined as the product of the catch-up and frontier-shift terms. in this paper, ...