Barsky, Robert B.; Sims, Eric R. - National Bureau of Economic Research (NBER) - 2009
We implement a new approach for the identification of "news shocks" about future technology. In a VAR featuring a … measure of aggregate technology and several forward-looking variables, we identify the news shock as the shock orthogonal to … technology innovations that best explains future variation in technology. In the data, news shocks account for the bulk of low …