Is or has economics ever been the imperial social science? Could or should it ever be so? These are the central concerns of this book. It involves a critical reflection on the process of how economics became the way it is, in terms of a narrow and intolerant orthodoxy, that has, nonetheless, increasingly directed its attention to appropriating the subject matter of other social sciences through the process termed 'economics imperialism'. In other words, the book addresses the shifting boundaries between economics and the other social sciences as seen from the confines of the dismal science, with some reflection on the responses to the economic imperialists by other disciplines. Significantly, an old economics imperialism is identified of the 'as if market' style most closely associated with Gary Becker, the public choice theory of Buchanan and Tullock and cliometrics. But this has given way to a more 'revolutionary' form of economics imperialism associated with the