The industry is a set of enterprises characterized by the unity of the economic purpose of the products produced, the uniformity of the materials consumed, the common technical base and technological processes, a special professional staff, specific working conditions.
There is also such a concept as”industrial or national economic complex”. The following complexes function in the national economy: agricultural and industrial (AIC), military-industrial (MIC), machine-building, metallurgical, chemical and forestry, construction, fuel and energy (fuel and energy complex), etc.
An industrial complex is understood as a set of certain groups of industries that are characterized by the production of similar (related) products or the performance of works (services). For example, the fuel and energy complex includes the coal, shale, oil, gas industries, as well as the electric power industry. The main task of the fuel and energy complex is to provide the national economy, as well as everyday life with fuel and energy.
The sectoral structure of industry is understood as the composition of industries or complexes that are part of industry, and their share in the total volume of industrial production. The branch structure of the industry is constantly in motion. It is influenced by the following factors: