Paul Krugman Wins Nobel Prize

As titled

I do not understand alot about internation economics beyond the concept of comparative advantage. However, everyone thinks that the award is well deserved.

However, I am surprised that he won the prize alone, despite the fact that there were serveral other economists who were instrumental in the development of the modern trade theory. People like Dixit, Helpman, and others. Bhagwati is very deserving too!