THE IMPACT OF SENSITIVITY ANALYSIS ON THE EVALUATION OF THE LOGISTICS PERFORMANCE INDEX ; UTICAJ ANALIZE OSETLjIVOSTI NA VREDNOVANјE INDEKSA LOGISTIČKIH PERFORMANSI

The logistics performance index (LPI) represents an important indicator of the state of logistics and its development in countries. The LPI is directly linked to the level of economic system development, and as such provides an adequate basis for the improvement of economy, through logistics and trade. The aim of this paper is to determine the impact of sensitivity analysis on the evaluation and ranking of the LPI in the Balkan countries, according to the report of the World Bank. Sensitivity analysis implies the change of the importance of six criteria based on which the LPI ranking is done. The multi-criteria decision-making model (MCDM), which consists of CRITIC and MARCOS methods for determining the LPI rank in the Balkan countries, was previously used. Criteria weights are simulated through 36 scenarios, whereby the weights of the observed criteria change in the range of 15% - 90%. The final results show that criteria values play very important role in the ranking of the Balkan countries, when it comes to the LPI. ; Indeks logističkih performansi (LPI) predstavlјa važan pokazatelј stanja logistike i njene razvijenosti u državama. Indeks logističkih performansi je direktno vezan za nivo razvijenosti privrednog sistema i kao takav daje adekvatnu podlogu za unapređenje ekonomije, kroz logistiku i trgovinu. Cilј ovog rada je utvrđivanje uticaja analize osjetlјivosti na vrednovanje i rangiranje LPI u zemlјama Balkana, prema izvještaju Svjetske Banke. Analiza osjetlјivosti podrazumijeva promjenu značaja šest kriterijuma na osnovu kojih se vrši rangiranje LPI. Prethodno je primjenjen model višekriterijumskog odlučivanja (VKO), koji se sastoji od CRITIC i MARCOS metoda za određivanje ranga LPI država Balkana. Simulirane su težine kriterijuma kroz 36 scenarija, pri čemu se težine posmatranog kriterijuma mijenjaju u opsegu 15% - 90 %. Krajnji rezultati pokazuju da vrijednosti kriterijuma igraju veoma bitnu ulogu u rangiranju država Balkana, kada je u pitanju indeks logističkih performansi.