For better or for worse, more and more academics are starting blogs. Here is the new blog of Harvard economist George Borjas, who has interesting things to say about immigration. By the way, I have said disparaging things about economics in the past. I have said, for example, that economics is “politics disguised as social science.” This is an indictment not of economics as it might be, or should be, but of economics as it all too often is. Economists, as such, have no evaluative expertise. Like philosophers, they are technicians. Unfortunately, we live in a world in which it is seen as boring to perform technical tasks. Everyone wants to make policy.