APPLYING CLUSTER ANALYSISIN THE BULGARIAN CHEMICAL INDUSTRY FOR THE PERIOD 2010–2020
APPLYING CLUSTER ANALYSISIN THE BULGARIAN CHEMICAL INDUSTRY FOR THE PERIOD 2010–2020

Summary/Abstract: This paper discusses the territorial organization of the chemical industry in Bulgaria. Using the ESRI ArcGIS software and applying cluster analysis, the study aim sto group (cluster) the 28 Bulgarian districts(NUTS 3level classification) based on produced output, persons employed, and Bulgarian lev (BGN)equivalent of foreign exchange earnings from exports for the period 2010–2020. Three reference years,2010, 2015, and 2020,have been selected for the observed period. The general conclusion is that the chemical industry in Bulgaria is characterized by high territorial concentration. Varna was the leading district in developing the chemical industry in the observed period from2010 to 2020, followed by Plovdiv, Ruse, and Sofia (the capital). At the other pole were the districts of Vidin, Montana, Vratsa, Pleven, Lovech, Razgrad, Silistra, Targoviste, Dobrich, Pernik, Kyustendil, Blagoevgrad, Sliven, Yambol, and Kardzhali. The findings of the research show that territorial polarization is linked with several factors that can be grouped according to their impact into four groups:1) raw material and energy, 2) transport infrastructure and proximity to the end user, 3) state and environmental regulations, and 4) provision of skilled labor.

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