“Why Are There Still So Many Jobs? The History and Future of Workplace Automation” is a 2015 essay by MIT economist David H. Autor, published in the Journal of Economic Perspectives. Written in the wake of alarmed forecasts about mass technological unemployment, it offers the most influential rebuttal of the simple “machines take the jobs” story.
Autor’s core point is that automation does two opposite things at once. It substitutes for labor in routine, codifiable tasks, but it also complements labor by raising productivity and amplifying the value of the things humans still do better, such as problem-solving, adaptability, judgment, and creativity. He invokes Polanyi’s paradox, the idea that we know more than we can explain, to argue that many tasks resist automation precisely because the rules for doing them cannot be written down. This is why, even after decades of computerization, demand for human work persisted, although it polarized into high-skill and low-skill jobs while hollowing out the routine middle.
The essay is a foundational reading for the augmentation-versus-automation debate. Autor does not claim technology is harmless; he documents painful labor-market polarization and distributional strain. But he insists that the interplay of substitution and complementarity, not substitution alone, is what determines whether a new technology destroys jobs or merely changes them, a framing that is now central to how economists reason about AI.