Kieran Healy

Contemporary social-scientific research seeks to identify specific causal mechanisms for outcomes of theoretical interest. Experiments that randomize populations to treatment and control conditions are the “gold standard” for causal inference. We identify, describe, and analyze the problem posed by transformative treatments. Such treatments radically change treated individuals in a way that creates a mismatch in populations, but this mismatch is not empirically detectable at the level of counterfactual dependence. In such cases, the identification of causal pathways is underdetermined in a previously unrecognized way. Moreover, if the treatment is indeed transformative it breaks the inferential structure of the experimental design. Transformative treatments are not curiosities or “corner cases,” but are plausible mechanisms in a large class of events of theoretical interest, particularly ones where deliberate randomization is impractical and quasi-experimental designs are sought instead. They cast long-running debates about treatment and selection effects in a new light, and raise new methodological challenges.

Productive exchange between disciplines faces a paradox. Modern fields of enquiry are large, differentiated, and always growing. This means their boundaries are extensive, and there are many areas of potential contact between them. We are spoiled for shared topics and overlapping questions. Yet differentiation also entails a high degree of specialization at any particular point, and so traffic across disciplinary borders is less common than it ought to be. The trouble with interdisciplinary work is that you need disciplines in order to do it, and a discipline is a kind of exclusive conversation. Over time, participants come to share reference points and assumptions. The conversation gets more involved. Instead of looking outside, disciplines will reproduce for themselves (in miniature and unsatisfactorily) tools and concepts that are better developed in cognate fields. Economists produce a working psychology, sociologists make a sketch of historical development, political philosophers know some stylized facts about social institutions. This process is guaranteed to produce straw men and errors of fact, but it is also inevitable because the ability to assume away some topics as settled or irrelevant is a precondition for any successful discipline.

Upon what kind of moral order does capitalism rest? Conversely, does the market give rise to a distinctive set of beliefs, habits, and social bonds? These questions are certainly as old as social science itself. In this review, we evaluate how today's scholarship approaches the relationship between markets and the moral order. We begin with Hirschman's characterization of the three rival views of the market as civilizing, destructive, or feeble in its effects on society. We review recent work at the intersection of sociology, economics, and political economy and show that these views persist both as theories of market society and moral arguments about it. We then argue that a fourth view, which we call moralized markets, has become increasingly prominent in economic sociology. This line of research sees markets as cultural phenomena and moral projects in their own right, and seeks to study the mechanisms and techniques by which such projects are realized in practice.