By @SimonCocking review of The Demographics of Innovation, Why Demographics is a Key to the Innovation Race, By James Liang. Published by Wiley £22.95/ US$29.95/ EUR27.60 In recent decades—as a result of increased urbanisation, industrialisation, and resulting affluence—people are having fewer children. This new demographic scenario has created a set of troubling social problems, such as labour shortages and a decline of economic dynamism. Written by James