teisesektor

The teisesektor, or secondary sector, is the part of an economy that converts raw materials and inputs from the primary sector into finished goods and infrastructure. It includes manufacturing, processing, construction, and, in many classifications, certain utility activities such as energy generation and distribution. The teisesektor sits between the primary sector (extraction and agriculture) and the tertiary sector (services) in the common three-sector model of economic activity.

Key characteristics of the teisesektor are its emphasis on production processes, capital intensity, and technology use. Production is typically organized around factories, plants, and construction sites, with output often linked to global demand and investment cycles. Employment in the teisesektor tends to be highly sensitive to business conditions and can shift with automation, outsourcing, and shifts in comparative advantage.

The teisesektor plays a central role in economic development and export performance. It contributes to GDP through value added from manufacturing and infrastructure projects and can drive productivity growth via economies of scale and innovation. Environmental and energy considerations are prominent, given the sector’s energy use and emissions profile in many countries.

Historically, the teisesektor expanded rapidly during the Industrial Revolution and continues to evolve with automation, digital technologies, and globalization. In advanced economies, its relative share of GDP and employment often declines as the service-oriented tertiary sector expands, a process sometimes described as deindustrialization. In developing economies, growth in the teisesektor can be a major driver of structural transformation and income growth.

See also: primary sector, tertiary sector, three-sector model, deindustrialization.