Learning Society

It has long been recognized that most standard of living increases are associated with advances in technology, not the accumulation of capital. Yet it has also become clear that what truly separates developed from less developed countries is not just a gap in resources or output but a gap in knowledge. In fact the pace at which developing countries grow is largely determined by the pace at which they close that gap. Therefore, how countries learn and become more productive is key to understanding how they grow and develop, especially over the long term.

The revised and updated edition of Lt. Col. Dave Grossman's modern classic about the psychology of combat, hailed by the Washington Post as "an illuminating account of how soldiers learn to kill and how they live with the experiences of having killed". In World War II, only 15 to 20 percent of combat infantry were willing to fire their rifles. In Korea, about 50 percent. In Vietnam, the figure rose to more than 90 percent. The good news is that most soldiers are loath to kill.

Why has punditry overtaken news, with so many media outlets pushing partisan agendas instead of information? Comedian Stephen Colbert's catchword "truthiness" has captured something essential about our age: that people are more comfortable with ideas that feel true, even if the evidence for those beliefs is thin.