The role of the inter-regional cooperation system in the spatial development of the national economy.

Relevance. The current socio-political and economic situation in Russia requires effective use of the potential of spatial development to strengthen economic sovereignty and national security. On the one hand, the country's   space offers significant advantages, including the development of new territories, the use of natural resources, and the creation of economic growth points. On the other hand, its scale and heterogeneity create difficulties in managing, maintaining integrity and eliminating inter-regional imbalances. The purpose is to substantiate the role of the system of interregional cooperation in the spatial development of the national economy as an instrument contributing to a more balanced and sustainable development of various territories of the country. Objective: to determine the role of the system of interregional cooperation in the spatial development of the national economy; to analyze the existing mechanisms and forms of interregional cooperation; to identify factors affecting the integration of regions; to develop recommendations for improving interregional relations, taking into account modern challenges and sustainable development strategies. Methodology. The methodological approach to the study of the system of interregional interaction in the   context of the spatial development of the national economy is based on the integrated application of theoretical, analytical and empirical methods aimed at a deep understanding of the key patterns and factors determining interregional processes. The results of the study confirm that inter-regional cooperation helps to eliminate socio-economic disparities and ensures the sustainable development of regions. The development of transport, digital and institutional infrastructure strengthens territorial connectivity and accessibility Within the framework of strategic planning, measures have been proposed to optimize interregional cooperation, including the diversification of economic ties, the development of clusters and the introduction of new integration tools. Conclusions. The study confirms that the system of interregional cooperation is an important tool for the spatial development of the national economy. It helps to eliminate territorial imbalances, optimize the use of resources and strengthen economic integration. The study suggests measures to improve inter-regional relations aimed at sustainable growth and increasing the competitiveness of regions.

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