It is crucial to find metrics which favour long-run investments and innovation. In the 1980s, it was not cost-benefit analysis that encouraged the BBC to establish a dynamic ‘learning programme’ to get kids to code. The activity led to the development of the BBC Microcomputer, which found its way into all British classrooms. While the Micro did not itself become a commercial success, procurement for its parts supported Acorn Computers and eventually led to the creation of ARM Holdings, one of the most successful UK technology companies of recent decades.