Body: "Technological change" is the study of an increase in the efficiency of a product or process that results in an increase in output, without an increase in input. In other words, someone invents or improves a product or process, which is then used to get a bigger reward for the same amount of work.
A few notable experts of "Technological change" include Michael Huesemann, Adam Jaffe, and Vernon Ruttan.
Invention, Diffusion, and Economics are a few themes of "Technological change".
People study "Technological change" in order to better understand how it improves efficiency while also displacing workers.