In 1990, motivated by applications in the social sciences, Thomas Schwartz made a conjecture about tournaments which would have had numerous attractive consequences. In particular, it implied that there is no tournament with a partition A, B of its vertex set, such that every transitive subset...

Wagner's "law of increasing state activity" has recently been subjected to intensive use of recondite econometric testing procedures. An examination of the relevant articles reveals ignorance both of Wagner's definition of "state activity" and of his insistence that he was not engaged in...