I don't think trade unions have much to do with the fact that children don't work in the mines or anywhere else anymore. We have a shorter work week for the last, the amount of time people have been falling steadily because we want to work less. It's a market force and that trade unions occasionally have asked for. If it wasn't happening through market forces, if it wasn't what people wanted, it would be very hard to get.
Economist and author Mariana Mazzucato talks about her book The Value of Everything with EconTalk host Russ Roberts. Mazzucato argues that economists have mismeasured value and have failed to appreciate the role of government as innovator. She argues for a more active role for government in the innovation process and for government to share in revenue proportional to its role in the creation of new technology.