"The theory of interstellar trade": http://www.princeton.edu/~pkrugman/interstellar.pdf http://www.princeton.edu/~pkrugman/interstellar.pdf "This paper, then,

"The theory of interstellar trade": http://www.princeton.edu/~pkrugman/interstellar.pdf http://www.princeton.edu/~pkrugman/interstellar.pdf "This paper, then, is a serious analysis of a ridiculous subject, which is of course the opposite of what is usual in economics." Although he calls it "serious", it's full of little jokes, some of them very good.