Deindustrialization
Deindustrialization refers to the declining relative importance of manufacturing in an economy, measured by the share of manufacturing in total employment and output. It is a widely observed phenomenon in advanced economies over recent decades, and it is contested both in its causes and in its consequences.
Measurement
Deindustrialization is most commonly measured by the share of manufacturing employment in total employment, which has fallen in most advanced economies since the 1970s. The share of manufacturing in value added has also declined, though less sharply in some cases because productivity growth in manufacturing has outpaced that in services. Absolute declines in manufacturing employment, as opposed to relative declines, occur during recessions and in specific regions or industries.
Distinguishing relative from absolute decline is essential. An economy may see the manufacturing employment share fall while total manufacturing output continues to grow, reflecting above-average productivity growth and the operation of the structure of the economy.
Causes
Several explanations are advanced. The first is the shift in demand toward services. As incomes rise, households devote a larger share of expenditure to services relative to manufactured goods, because demand for many manufactures is income-inelastic. This demand-side shift reduces the employment share of manufacturing through the composition of demand.
The second explanation is differential productivity growth. Because productivity rises faster in manufacturing than in services, fewer workers are needed to produce a given quantity of manufactures, reducing manufacturing employment relative to the total.
The third explanation emphasises international trade. Imports from lower-wage economies may displace domestic manufacturing employment, particularly in labour-intensive sectors. The evidence suggests that trade has contributed to deindustrialization, with the magnitude of the effect debated, but that it is not the dominant force in most advanced economies.
Regional and Distributional Effects
Deindustrialization is geographically uneven. Manufacturing tends to be concentrated in particular regions, so the loss of manufacturing jobs can devastate local labour markets, generating persistent unemployment, lower participation, and social decline. The adjustment of displaced workers is often slow, particularly for older workers with industry-specific skills.
Distributional effects may also be significant, with losses concentrated among certain groups of workers while gains accrue to consumers through lower prices and to other regions and sectors.
Policy Debates
Views differ sharply on whether deindustrialization warrants policy intervention. Some argue that it is a natural consequence of development and that attempts to resist it misallocate resources. Others point to the loss of high-wage jobs, the erosion of the manufacturing base as a source of innovation, and the strategic importance of certain capabilities, and propose industrial policy to support advanced manufacturing.
The debate connects to broader questions about the sources of productivity growth, the distribution of the gains from trade, and the appropriate role of government in shaping the structure of the economy.
Debate over Causes
The relative importance of demand shifts, productivity growth, and trade in explaining deindustrialization is contested. Studies decomposing the decline in manufacturing employment find that the shift in demand toward services and differential productivity growth account for much of the change, with trade playing a smaller but still meaningful role.
The role of trade is more prominent in specific sectors and regions. Import competition from lower-wage economies has been associated with substantial employment losses in labour-intensive manufacturing, with effects concentrated in particular local labour markets. The evidence suggests that adjustment to trade shocks is slow and that the costs are persistent.
Deindustrialization and Premature Deindustrialization
An important extension concerns premature deindustrialization, the observation that many developing countries are experiencing declining manufacturing shares at lower levels of income than the advanced economies did. This pattern reflects globalization, technological change, and the shifting geography of manufacturing, and it raises concerns about the ability of developing countries to follow the traditional path of industrialization as a route to prosperity.
Policy Responses
Policy responses vary. Some advocate active industrial policy to support advanced manufacturing, research and development, and workforce skills, arguing that manufacturing generates spillovers, supports innovation, and provides high-wage employment. Others emphasise adjustment and the development of new sources of comparative advantage, including tradable services.
- Regional Policy
Because the effects of deindustrialization are geographically concentrated, regional policy plays a role. Measures include support for retraining and relocation, investment in infrastructure and education, and incentives for new economic activity in affected areas. The effectiveness of such policies depends on the underlying sources of local disadvantage.
The Future of Manufacturing
Technological change, including automation, robotics, and digital production, is reshaping manufacturing itself. These technologies may allow advanced economies to retain or regain manufacturing activity by reducing the importance of labour costs, but they also reduce the employment intensity of manufacturing. The result may be a manufacturing sector that is productive and innovative but employs a small share of the workforce, with implications for the distribution of the gains from growth and for the design of policies to support workers and communities in transition.