Geographers are interested to hear it.
These days he is widely known for his popular books and magazine columns, where his speciality is to explain economics in straightforward terms while pouring scorn on rival experts such as Lester Thurow and Robert Reich. Mr Krugman is a brilliant writer of economics for non-specialists. Annoyingly, he is at least as good at the real thing. It is too soon to say whether this new area of work, like its predecessor, will become a major field of research in its own right. But it is not too early for geographers to be very annoyed that economists are roaming blithely across their land.