The uneven distribution of economic activities causes certain sectors to concentrate in specific locations due to geographical factors. Kalimantan Timur Province, rich in natural resources, has long relied on the mining sector; however, sustainability issues and spatial leakage require reassessment. This study aims to identify the latest sectoral agglomeration patterns using the Locational Quotient, Locational Index, and Specialization Index to understand the region's dominance, concentration, and specialization. Implementation methods involve the use of secondary data from the 2024 Gross Regional Domestic Product at constant prices from BPS Kalimantan Timur Province, which was processed and analyzed at the regency/city level to identify sectoral agglomeration patterns. Analytical techniques used in this study consist of the Locational Quotient to identify leading sectors, the Locational Index to measure sectoral concentration, and the Specialization Index to assess economic specialization. Research results indicate that, geographically, Gross Regional Domestic Product accumulation is concentrated in the central and eastern coastal areas of the province, aligning with the core-periphery model and economic agglomeration patterns. Regencies rely more on the agricultural and mining sectors, whereas urban economies are more diversified. This pattern confirms that regencies generally depend on natural resource exploitation, while cities are more developed in the manufacturing and service sectors. These findings highlight the need for economic diversification strategies in regions still dependent on extractive industries.
Fathan Rivai (Tue,) studied this question.