I struggled with the issue of defining "a school of economics" while researching William Whewell and the other early mathematical economists in Britain. I concluded that while there were clear connections between these writers, still they did not consistitute a "school of thought" (hence the term the "Whewell GROUP of Mathematical Economists"). Drawing on Henry Spiegel, I argued that -- "Fairly general agreement defines the sociological characteristics of a school of economic thought. Henry W. Spiegel, for instance, notes that a school consists of 'a recognized leader, a closely knit group of followers to exalt and spread the doctrines of the master, and a periodical to help in their dissemination.' Such schools frequently have a geographic base, institutional links, and access to or control over a journal. Finally, 'the founders of influential schools devoted many years to their nurture' (Spiegel 1971, 183 - 184)." While the Whewell Group shared several of these sociological characteristics, certain crucial elements were missing. See James P. Henderson *Early British Mathematical Economics, William Whewell and the British Case* pp. 2 - 3. I look forward to others' take on this issue Jim Henderson