Manufacturing Jobs in an Age of Robots

How industrial robots are changing factory work, which countries use them most, and what research says about their effects on jobs and wages.

Factories increasingly use industrial robots: programmable machines that weld, paint, assemble and move materials. Robots have transformed industries like car making and electronics.

Robot density

The International Federation of Robotics measures robot density: the number of industrial robots per 10,000 manufacturing workers. South Korea has had one of the highest robot densities in the world, around 1,000 robots per 10,000 workers. Singapore, China, Germany and Japan also have high densities. China installs more robots each year than any other country. India’s robot density is much lower, though installations have grown.

Effects on jobs and wages

Research has found:

Job losses in exposed areas: a study by Daron Acemoglu and Pascual Restrepo found that each additional robot per thousand workers in U.S. local labour markets reduced employment and wages, with notable effects in areas where robots spread quickly.
Productivity gains: robots raise output and can make products cheaper.
New jobs: some jobs are created in programming, maintaining and designing robots, and in expanding firms.
Firm-level effects: research in several countries found firms adopting robots often grew and hired more, while competitors that did not adopt robots lost jobs.

Implications for developing countries

Cheap labour has been a key advantage for developing countries entering manufacturing. If robots become cheaper than workers for tasks like sewing or assembly, this advantage may shrink, a concern linked to premature deindustrialisation. However, robots remain costly for many tasks, especially those requiring dexterity, such as handling soft fabrics.

Why robots spread

Rising wages, as in China, make automation more attractive.
Falling robot prices and better technology.
Quality and precision requirements.
Ageing workforces, as in South Korea, Japan and Germany.

The welding robot

A car factory once employed many welders to join metal parts. Robots now perform most welding faster and more precisely. Fewer welders are needed, but the factory employs technicians to programme and maintain the robots, and the higher productivity helps it win more orders. Some jobs disappear, others change and some new ones appear.

Thinking robots replace all factory workers

Robots take over specific tasks, especially repetitive, precise ones. Many factory tasks still require human dexterity, judgement and flexibility, and robots create some new jobs.

Key takeaways

Industrial robots perform tasks like welding, painting and assembly.
South Korea has one of the highest robot densities; China installs the most robots each year.
Research links robots to local job and wage losses but also productivity gains.
Cheaper robots may reduce developing countries' low-wage advantage.