Last month’s award of the Nobel Price in economics set off a great deal of chortling because one of the three recipients, Eugene Fama, received the award for saying that markets are efficient at capital allocation and another, Robert Schiller, received the award for saying they are not....
To me, much of the argument about whether or not markets are efficient misses the point. There are conditions, it seems, under which markets seem to do a great job of managing risk, keeping the cost of capital reasonable, and allocating capital to its most productive use, and there are times when clearly this does not happen. The interesting question, in that case, becomes what are the conditions under which the former seems to occur.Michael Pettis jumps into the fray.
China Financial Markets
When are markets “rational”?