THE IMPACT OF ENTROPY ON THE EFFICIENCY OF EXPRESS COURIER SYSTEMS
Abstract
The efficiency of organization depends on the level of entropy. Most often, if the entropy is higher, efficiency is lower, and conversely. The model proposed in this paper involves a measurement of the relative efficiency of courier delivery areas - CDA formed to be served by a courier. A question of forming the CDAs is one of the most important in organizing an express courier system. For measurement purpose we used Data envelopment analysis method - DEA. The obtained results indicated which zones are characterized by the presence of entropy. By further analysis, i.e. by calculation the target values for inefficient CDAs we get the directions about possible points where the changes are needed to achieve an improvement. This was done based on the determination of reference efficient decision making units – DMUs, in this case CDAs. Beside this we ranked all the efficient DMUs. The proposed methodology was tested and verified in the case of express courier system of the Post of Serbia which is called Post Express. The empirical example is based on data collected in observation during 30 working days analyzing six CDAs.
Keywords
References
Andersen, P., Petersen, N. C. (1993): A Procedure for Ranking Efficient
Units in Data Envelopment Analysis, Management Science, Vol. 39, No. 10, pp.
1261-1264
Boile M. (2001): Estimating technical and scale inefficiencies of public
transit systems, Journal of Transportation Engineering, Vol. 127, No. 3, pp.
187-193
Charnes, A., Cooper, W., Rhodes E. (1978): Measuring the efficiency of
decision-making units, European Journal of Operational Research, Vol. 2, No. 6,
pp. 429–444
Cooper, W., Seiford, L., Tone, K. (2006). Introduction to Data
Envelopment Analysis and Its Uses, New York: Springer.
Deprins, D., Simar, L., Tulkens, H. (1984). Measuring Labor Efficiency in
Post Offices, In M. Marchand, P.Pestieau, H. Tulkens (eds.), The Performance of
Public Enterprises: Concepts and Measurement, Amsterdam: North-Holland,
pp.243-267
Farrell, M.J. (1957): The measurement of productive efficiency, Journal
of the Royal Statistical Society: Series A, Vol. 120, No. 3, pp. 253-290
Farrell, M.J., Fieldhouse, M. (1962): Estimating efficient production
functions under increasing returns to scale, Journal of the Royal Statistical
Society: Series A, Vol. 125, No. 2, pp. 252-267
Mihailovic, B., Simonovic, Z., Parausic, V. (2009): Entropija kao mera
organizacione neefikasnosti [In English: The entropy as a measure of
organizational inefficiency], Industrija, Vol. 37, No. 3, pp. 109-121
Pejcic Tarle, S., Bojkovic N. (2012). Evropska politika odrzivog razvoja
transporta [In English: The European policy on a sustainable transport
development], Belgrade: Faculty of Transport and Traffic Engineering.
Porcelli,
F. (2009). Measurement of Technical Efficiency. A brief survey on parametric and
non-parametric techniques. Available at: http://www.researchgate.net/publictopics.PublicPostFileLoader.html?id=55b724115dbbbd597e8b459c&key=37c09bab-2729-4efd-bd72-82d1b80d356b,
Accessed Avg 20, 2015.
Ralevic, P., Dobrodolac, M., Markovic D. (2014): Using a nonparametric
technique to measure the cost efficiency of postal delivery branches, Central
European Journal of Operations Research, DOI: 10.1007/s10100-014-0369-0
Ralevic, P., Dobrodolac, M., Markovic D., Finger, M. (2014): Stability of
the Classifications of Returns to Scale in Data Envelopment Analysis: A Case
Study of the Set of Public Postal Operators, Acta Polytechnica Hungarica, Vol.
11, No. 8, pp. 177-196
Ralevic, P., Dobrodolac, M., Markovic, D., Mladenovic, S. (2015): The
Measurement of Public Postal Operators’ Profit Efficiency by Using Data
Envelopment Analysis (DEA): a Case Study of the European Union Member States
and Serbia, Engineering Economics, Vol. 26, No. 2, pp. 159–168
Republic of Serbia
(2005). Zakon o postanskim uslugama [In English: The Law on Postal Services],
Belgrade: National Assembly of the Republic of Serbia.