Industry is the most important branch of the national economy, which has a decisive impact on the level of development of the productive forces of society. Industry structure — the composition and share ratio of different industries, as well as the types of production included in it, as well as the dynamics of changes in these shares. Business is one of the main activities in a market economy, a source of economic and social development of society. It covers production, commercial, consulting, banking and other areas of activity.