Rajan's look at the fissures that brought about the global financial crisis -- and which are still at work today.
Fault Lines: "There are deep fault lines in the global economy, fault lines that have developed because in an integrated economy and in an integrated world, what is best for the individual actor or institutions is not always best for the system. Responsibility for some of the more serious fault lines lies not in economics but in politics. Unfortunately, we did not know where all these fault lines ran until the crisis exposed them. We now know better, but the danger is that we will continue to ignore them."