IT: From complement to substitute

摘要

Technologies that improve worker productivity are key drivers of economic growth. A handful of powerful general-purpose technologies have greatly accelerated the normal rate of growth. Characteristic of these general-purpose technologies is their potential for use in a wide range of economic sectors, their continual improvement over time, and their ability to stimulate innovation in the sectors that use them [1,2]. Examples include the steam engine, electricity, the internal combustion engine, and semiconductors