Abstract
This article characterizes politics, philosophy, and economics (PPE) as a substantive research programme as a flexible and analytic debate on the relations between the individual and society that incorporates both positive and normative analyses. This, in contrast to a view of PPE as a series of interdisciplinary or multidisciplinary topics. To this end, I sketch the general shape of the research programme, it boundaries and its features, before offering a slightly more detailed account of some aspects of the PPE programme. I also defend the claim that there is some value in recognizing PPE as a research programme, and after discussing the conditions required for the programme to thrive, suggest that there is some reason to be concerned for its future.