About this topic
Summary ‘Conceptual Engineering’ is both the name of a philosophical method and the name of an increasingly popular field of metaphilosophical research. Although the method of conceptual engineering has arguably been practiced throughout the history of philosophy, it has not been until recently that conceptual engineering became the object of metaphilosophical research. The key idea of conceptual engineering is to take a normative approach to traditional philosophical questions: Instead of asking what our current concepts of say, knowledge, race or gender, do mean, conceptual engineers ask what these concepts should mean. The underlying assumption is that our actual concepts are not necessarily ideal and that improving them is an important desideratum of philosophy. The contemporary metaphilosophical debate about conceptual engineering involves questions regarding its normative foundations, its actual feasibility, its coherence with semantic externalism and its proper limits.
Key works Many contemporary authors in the field link their work to Rudolf Carnap’s method of explication (Carnap 1950), which is a kind of conceptual engineering designed for the purposes of science. Brun 2016 contains a very helpful discussion of Carnapian explications. Another important starting point for current discussions about conceptual engineering is Sally Haslanger's so called 'ameliorative analysis', introduced in Haslanger 2000 and further developed in Haslanger 2012. Burgess & Plunkett 2013Burgess & Plunkett 2013 approach more broadly what they call 'conceptual ethics'. The first monograph on conceptual engineering is Cappelen 2018.
Introductions As of yet, there are no introductory texts on conceptual engineering, but most of the work is fairly comprehensible. See the first two chapters of Cappelen 2018, Burgess & Plunkett 2013 and Burgess & Plunkett 2013 for helpful characterizations of the basic goals of conceptual engineering as well as a list of example cases. See Brun 2016 for a good introduction and discussion of Carnapian explications as a method of doing philosophy.
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  1. Kant's Explication and Carnap's Explication: The Redde Rationem.Giovanni Boniolo - 2003 - International Philosophical Quarterly 43 (3; ISSU 171):289-298.
    In this paper I will compare the concept of explication à la Carnap and the concept of explication à la Kant. This essay should primarily be seen as a comparison of two different philosophical styles, but it is also intended as a vindication of what Kant wrote and what Carnap forgot to read.
  2. Strategic Conceptual Engineering for Epistemic and Social Aims.Ingo Brigandt & Esther Rosario - forthcoming - In Alexis Burgess, Herman Cappelen & David Plunkett (eds.), Conceptual Ethics and Conceptual Engineering. Oxford: Oxford University Press.
    Examining previous discussions on how to construe the concepts of gender and race, we advocate what we call strategic conceptual engineering. This is the employment of a (possibly novel) concept for specific epistemic or social aims, concomitant with the openness to use a different concept (e.g., of race) for other purposes. We illustrate this approach by sketching three distinct concepts of gender and arguing that all of them are needed, as they answer to different social aims. The first concept serves (...)
  3. Conceptual Re-Engineering: From Explication to Reflective Equilibrium.Georg Brun - forthcoming - Synthese:1-30.
    Carnap and Goodman developed methods of conceptual re-engineering known respectively as explication and reflective equilibrium. These methods aim at advancing theories by developing concepts that are simultaneously guided by pre-existing concepts and intended to replace these concepts. This paper shows that Carnap’s and Goodman’s methods are historically closely related, analyses their structural interconnections, and argues that there is great systematic potential in interpreting them as aspects of one method, which ultimately must be conceived as a component of theory development. The (...)
  4. Explication as a Method of Conceptual Re-Engineering.Georg Brun - 2016 - Erkenntnis 81 (6):1211-1241.
    Taking Carnap’s classic exposition as a starting point, this paper develops a pragmatic account of the method of explication, defends it against a range of challenges and proposes a detailed recipe for the practice of explicating. It is then argued that confusions are involved in characterizing explications as definitions, and in advocating precising definitions as an alternative to explications. Explication is better characterized as conceptual re-engineering for theoretical purposes, in contrast to conceptual re-engineering for other purposes and improving exactness for (...)
  5. Conceptual Ethics and Conceptual Engineering.Burgess Alexis, Cappelen Herman & Plunkett David (eds.) - forthcoming - Oxford University Press.
  6. Conceptual Engineering and Conceptual Ethics.Alexis Burgess, Herman Cappelen & David Plunkett (eds.) - forthcoming - Oxford University Press.
  7. Conceptual Ethics I.Alexis Burgess & David Plunkett - 2013 - Philosophy Compass 8 (12):1091-1101.
    Which concepts should we use to think and talk about the world and to do all of the other things that mental and linguistic representation facilitates? This is the guiding question of the field that we call ‘conceptual ethics’. Conceptual ethics is not often discussed as its own systematic branch of normative theory. A case can nevertheless be made that the field is already quite active, with contributions coming in from areas as diverse as fundamental metaphysics and social/political philosophy. In (...)
  8. Conceptual Ethics II.Alexis Burgess & David Plunkett - 2013 - Philosophy Compass 8 (12):1102-1110.
    Which concepts should we use to think and talk about the world, and to do all of the other things that mental and linguistic representation facilitates? This is the guiding question of the field that we call ‘conceptual ethics’. Conceptual ethics is not often discussed as its own systematic branch of normative theory. A case can nevertheless be made that the field is already quite active, with contributions coming in from areas as diverse as fundamental metaphysics and social/political philosophy. In (...)
  9. Conceptual Engineering: The Master Argument.Herman Cappelen - forthcoming - In Herman Cappelen, David Plunkett & Alexis Burgess (eds.), Conceptual Engineering and Conceptual Ethics. Oxford: Oxford University Press.
  10. Fixing Language: An Essay on Conceptual Engineering.Herman Cappelen - 2018 - Oxford: Oxford University Press.
    Herman Cappelen investigates ways in which language (and other representational devices) can be defective, and how they can be improved. In all parts of philosophy there are philosophers who criticize the concepts we have and propose ways to improve them. Once one notices this about philosophy, it's easy to see that revisionist projects occur in a range of other intellectual disciplines and in ordinary life. That fact gives rise to a cluster of questions: How does the process of conceptual amelioration (...)
  11. Fixing Language: An Essay on Conceptual Engineering.Herman Cappelen - 2018 - Oxford University Press.
    Herman Cappelen investigates how language and other representational devices can go wrong, and how to fix them. We use language to understand and talk about the world, but what if our language has deficiencies that prevent it from playing that role? How can we revise our concepts, and what are the limits on revision?
  12. Why Philosophers Shouldn’T Do Semantics.Herman Cappelen - 2017 - Review of Philosophy and Psychology 8 (4):743-762.
    The linguistic turn provided philosophers with a range of reasons for engaging in careful investigation into the nature and structure of language. However, the linguistic turn is dead. The arguments for it have been abandoned. This raises the question: why should philosophers take an interest in the minutiae of natural language semantics? I’ll argue that there isn’t much of a reason - philosophy of language has lost its way. Then I provide a suggestion for how it can find its way (...)
  13. A Guided Tour Of Conceptual Engineering and Conceptual Ethics.Herman Cappelen & David Plunkett - forthcoming - In Herman Cappelen, David Plunkett & Alexis Burgess (eds.), Conceptual Engineering and Conceptual Ethics. Oxford: Oxford University Press.
  14. Logical Foundations of Probability.Rudolf Carnap - 1950 - Chicago]University of Chicago Press.
  15. Carnap and Twentieth-Century Thought: Explication as Enlightenment.A. W. Carus - 2007 - Cambridge University Press.
    Rudolf Carnap is widely regarded as one of the most important philosophers of the twentieth century. Born in Germany and later a US citizen, he was a founder of the philosophical movement known as Logical Empiricism. He was strongly influenced by a number of different philosophical traditions, and also by the German Youth Movement, the First World War, and radical socialism. This book places his central ideas in a broad cultural, political and intellectual context, showing how he synthesised many different (...)
  16. Carnapian Explication and Ameliorative Analysis: A Systematic Comparison.Catarina Dutilh Novaes - forthcoming - Synthese.
  17. Inconsistency and Replacement.Matti Eklund - forthcoming - Inquiry : An Interdisciplinary Journal of Philosophy:1-16.
    The article is an extended critical discussion of Kevin Scharp’s Replacing Truth. Scharp’s case for the claim that the concept of truth is inconsistent is criticized, and so is his case for the claim that the concept of truth must be replaced because of its inconsistency.
  18. Inconsistency and Replacement.Matti Eklund - forthcoming - Inquiry : An Interdisciplinary Journal of Philosophy:1-16.
    The article is an extended critical discussion of Kevin Scharp’s Replacing Truth. Scharp’s case for the claim that the concept of truth is inconsistent is criticized, and so is his case for the claim that the concept of truth must be replaced because of its inconsistency.
  19. Alternative Normative Concepts.Matti Eklund - 2012 - Analytic Philosophy 53 (2):139-157.
  20. Revisionary Epistemology.Davide Fassio & Robin McKenna - 2015 - Inquiry : An Interdisciplinary Journal of Philosophy 58 (7-8):755-779.
    What is knowledge? What should knowledge be like? Call an epistemological project that sets out to answer the first question ‘descriptive’ and a project that sets out to answer the second question ‘normative’. If the answers to these two questions don’t coincide—if what knowledge should be like differs from what knowledge is like—there is room for a third project we call ‘revisionary’. A revisionary project starts by arguing that what knowledge should be differs from what knowledge is. It then proposes (...)
  21. A Defence of Constructionism: Philosophy as Conceptual Engineering.Luciano Floridi - 2011 - Metaphilosophy 42 (3):282-304.
    Abstract: This article offers an account and defence of constructionism, both as a metaphilosophical approach and as a philosophical methodology, with references to the so-called maker's knowledge tradition. Its main thesis is that Plato's “user's knowledge” tradition should be complemented, if not replaced, by a constructionist approach to philosophical problems in general and to knowledge in particular. Epistemic agents know something when they are able to build (reproduce, simulate, model, construct, etc.) that something and plug the obtained information into the (...)
  22. Philosophy as Conceptual Engineering: Inductive Logic in Rudolf Carnap's Scientific Philosophy.Christopher F. French - 2015 - Dissertation, University of British Columbia
  23. Rudolf Carnap: Philosophy of Science as Engineering Explications.Christopher F. French - 2015 - In Uskali Mäki, Stephanie Ruphy, Gerhard Schurz & Ioannis Votsis (eds.), Recent Developments in the Philosophy of Science: EPSA13 Helsinki. Springer. pp. 293-303.
    One way of explaining Rudolf Carnap’s mature philosophical view is by drawing an analogy between his technical projects—like his work on inductive logic—with a certain kind of conceptual engineering. After all, there are many mathematical similarities between Carnap’s work in inductive logic and a number of results from contemporary confirmation theory, statistics and mathematical probability theory. However, in stressing these similarities, the conceptual dependence of Carnap’s inductive logic on his work on semantics is downplayed. Yet it is precisely the conceptual (...)
  24. Neutralism and Conceptual Engineering.Patrick Greenough - forthcoming - In Alexis Burgess, Herman Cappelen & David Plunkett (eds.), Conceptual Engineering and Conceptual Ethics. Oxford: Oxford University Press.
    Conceptual Engineering alleges that philosophical problems are best treated via revising or replacing our concepts (or words). The goal here is not to defend Conceptual Engineering but rather show that it can (and should) invoke Neutralism—the broad view that philosophical progress can take place when (and sometimes only when) a thoroughly neutral, non-specific theory, treatment, or methodology is adopted. A neutralist treatment of one form of skepticism is used as a case study and is compared with various non-neutral rivals. Along (...)
  25. Conceptual Marxism and Truth: Inquiry Symposium on Kevin Scharp’s Replacing Truth.Patrick Greenough - forthcoming - Inquiry : An Interdisciplinary Journal of Philosophy:1-19.
    In Replacing Truth (2013), Scharp takes the concept of truth to be fundamentally incoherent. As such, Scharp reckons it to be unsuited for systematic philosophical theorising and in need of replacement—at least for regions of thought and talk which permit liar sentences and their ilk to be formulated. This replacement methodology is radical because it not only recommends that the concept of truth be replaced (in troublesome domains) but that the word “true” be replaced too. Only Tarski has attempted anything (...)
  26. Resisting Reality: Social Construction and Social Critique.Sally Haslanger - 2012 - Oxford University Press.
    In this collection of previously published essays, Sally Haslanger draws on insights from feminist and critical race theory and on the resources of contemporary analytic philosophy to develop the idea that gender and race are positions ...
  27. Language, Politics, and “The Folk”: Looking for “The Meaning” of ‘Race’.Sally Haslanger - 2010 - The Monist 93 (2):169-187.
    Contemporary discussions of race and racism devote considerable effort to giving conceptual analyses of these notions. Much of the work is concerned to investigate a priori what we mean by the terms ‘ race ’ and ‘racism’ ; more recent work has started to employ empirical methods to determine the content of our “folk concepts,” or “folk theory” of race and racism. In contrast to both of these projects, I have argued elsewhere that in considering what we mean by these (...)
  28. Gender and Race: (What) Are They? (What) Do We Want Them to Be?Sally Haslanger - 2000 - Noûs 34 (1):31–55.
    It is always awkward when someone asks me informally what I’m working on and I answer that I’m trying to figure out what gender is. For outside a rather narrow segment of the academic world, the term ‘gender’ has come to function as the polite way to talk about the sexes. And one thing people feel pretty confident about is their knowledge of the difference between males and females. Males are those human beings with a range of familiar primary and (...)
  29. What Good Are Our Intuitions: Philosophical Analysis and Social Kinds.Sally Haslanger - 2000 - Aristotelian Society Supplementary Volume 80 (1):89-118.
    Across the humanities and social sciences it has become commonplace for scholars to argue that categories once assumed to be “natural” are in fact “social” or, in the familiar lingo, “socially constructed”. Two common examples of such categories are race and gender, but there many others. One interpretation of this claim is that although it is typically thought that what unifies the instances of such categories is some set of natural or physical properties, instead their unity rests on social features (...)
  30. What Knowledge is and What It Ought to Be: Feminist Values and Normative Epistemology.Sally Haslanger - 1999 - Philosophical Perspectives 13 (s13):459-480.
  31. What Are We Talking About? The Semantics and Politics of Social Kinds.Sally Anne Haslanger - 2005 - Hypatia 20 (4):10-26.
    Theorists analyzing the concepts of race and gender disagree over whether the terms refer to natural kinds, social kinds, or nothing at all. The question arises: what do we mean by the terms? It is usually assumed that ordinary intuitions of native speakers are definitive. However, I argue that contemporary semantic externalism can usefully combine with insights from Foucauldian genealogy to challenge mainstream methods of analysis and lend credibility to social constructionist projects.
  32. Philosophical Analysis and Social Kinds.Sally Haslanger & Jennifer Saul - 2006 - Proceedings of the Aristotelian Society 106 (1):89-118.
    [Sally Haslanger] In debates over the existence and nature of social kinds such as 'race' and 'gender', philosophers often rely heavily on our intuitions about the nature of the kind. Following this strategy, philosophers often reject social constructionist analyses, suggesting that they change rather than capture the meaning of the kind terms. However, given that social constructionists are often trying to debunk our ordinary (and ideology-ridden?) understandings of social kinds, it is not surprising that their analyses are counterintuitive. This article (...)
  33. How To Conceptually Engineer Conceptual Engineering?Manuel Gustavo Isaac - manuscript
    Conceptual engineering means to provide a method to assess and improve our concepts working as cognitive devices. But conceptual engineering still lacks an account of what concepts are (as cognitive devices) and of what engineering is (in the case of cognition). And without such prior understanding of its subject matter, or so it is claimed here, conceptual engineering is bound to remain useless, merely operating as a piecemeal approach, with no overall grip on its target domain. The purpose of this (...)
  34. Carnap on Concept Determination: Methodology for Philosophy of Science. [REVIEW]James Justus - 2012 - European Journal for Philosophy of Science 2 (2):161-179.
    Abstract Recent criticisms of intuition from experimental philosophy and elsewhere have helped undermine the authority of traditional conceptual analysis. As the product of more empirically informed philosophical methodology, this result is compelling and philosophically salutary. But the negative critiques rarely suggest a positive alternative. In particular, a normative account of concept determination—how concepts should be characterized—is strikingly absent from such work. Carnap's underappreciated theory of explication provides such a theory. Analyses of complex concepts in empirical sciences illustrates and supports this (...)
  35. Living Words: Meaning Underdetermination and the Dynamic Lexicon.Peter Ludlow - 2014 - Oxford University Press.
    Peter Ludlow shows how word meanings are much more dynamic than we might have supposed, and explores how they are modulated even during everyday conversation. The resulting view is radical, and has far-reaching consequences for our political and legal discourse, and for enduring puzzles in the foundations of semantics, epistemology, and logic.
  36. Armchair Philosophy Naturalized.Sebastian Lutz - forthcoming - Synthese.
    Carnap suggests that philosophy can be construed as being engaged solely in conceptual engineering. I argue that since many results of the sciences can be construed as stemming from conceptual engineering as well, Carnap’s account of philosophy can be methodologically naturalistic. This is also how he conceived of his account. That the sciences can be construed as relying heavily on conceptual engineering is supported by empirical investigations into scientific methodology, but also by a number of conceptual considerations. I present a (...)
  37. Explication Defended.Patrick Maher - 2007 - Studia Logica 86 (2):331-341.
    How can formal methods be applied to philosophical problems that involve informal concepts of ordinary language? Carnap answered this question by describing a methodology that he called “explication." Strawson objected that explication changes the subject and does not address the original philosophical problem; this paper shows that Carnap’s response to that objection was inadequate and offers a better response. More recent criticisms of explication by Boniolo and Eagle are shown to rest on misunderstandings of the nature of explication. It is (...)
  38. Carnapian Explication, Formalisms as Cognitive Tools, and the Paradox of Adequate Formalization.Catarina Dutilh Novaes & Erich Reck - 2017 - Synthese 194 (1):195-215.
    Explication is the conceptual cornerstone of Carnap’s approach to the methodology of scientific analysis. From a philosophical point of view, it gives rise to a number of questions that need to be addressed, but which do not seem to have been fully addressed by Carnap himself. This paper reconsiders Carnapian explication by comparing it to a different approach: the ‘formalisms as cognitive tools’ conception. The comparison allows us to discuss a number of aspects of the Carnapian methodology, as well as (...)
  39. On Strawson’s Critique of Explication as a Method in Philosophy.Mark Pinder - forthcoming - Synthese:1-27.
    In the course of theorising, it can be appropriate to replace one concept—a folk concept, or one drawn from an earlier stage of theorising—with a more precise counterpart. The best-known account of concept replacement is Rudolf Carnap’s ‘explication’. P.F. Strawson famously critiqued explication as a method in philosophy. As the critique is standardly construed, it amounts to the objection that explication is ‘irrelevant’, fails to be ‘illuminating’, or simply ‘changes the subject’. In this paper, I argue that this is an (...)
  40. Does Experimental Philosophy Have a Role to Play in Carnapian Explication?Mark Pinder - 2017 - Ratio 30 (4):443-461.
    Shepherd and Justus argue that experimental philosophy has an important role to play in the method of Carnapian explication, facilitating the preparatory stage during which the concept to be explicated is clarified. I raise concerns about their specific proposal, before sketching an alternative. In particular, I suggest that experimental philosophy can directly aid the construction of fruitful concepts. This provides a clear practical role for experimental philosophy, both within the sciences and theoretical inquiry more generally. In this respect, experimental philosophy (...)
  41. Conceptual History, Conceptual Ethics, and the Aims of Inquiry: A Framework for Thinking About the Relevance of the History/Genealogy of Concepts to Normative Inquiry.David Plunkett - 2016 - Ergo: An Open Access Journal of Philosophy 3.
    In this paper, I argue that facts about the history or genealogy of concepts (facts about what I call “conceptual history”) can matter for normative inquiry. I argue that normative and evaluative issues about concepts (such as issues about which concepts an agent should use, in a given context) matter for all forms of inquiry (including normative inquiry) and that conceptual history can help us when we engage in thinking about these normative and evaluative issues (which I call issues in (...)
  42. Which Concepts Should We Use?: Metalinguistic Negotiations and The Methodology of Philosophy.David Plunkett - 2015 - Inquiry : An Interdisciplinary Journal of Philosophy 58 (7-8):828-874.
    This paper is about philosophical disputes where the literal content of what speakers communicate concerns such object-level issues as ground, supervenience, or real definition. It is tempting to think that such disputes straightforwardly express disagreements about these topics. In contrast to this, I suggest that, in many such cases, the disagreement that is expressed is actually one about which concepts should be employed. I make this case as follows. First, I look at non-philosophical, everyday disputes where a speaker employs a (...)
  43. Disagreement and the Semantics of Normative and Evaluative Terms.David Plunkett & Timothy Sundell - 2013 - Philosophers' Imprint 13.
    In constructing semantic theories of normative and evaluative terms, philosophers have commonly deployed a certain type of disagreement -based argument. The premise of the argument observes the possibility of genuine disagreement between users of a certain normative or evaluative term, while the conclusion of the argument is that, however differently those speakers employ the term, they must mean the same thing by it. After all, if they did not, then they would not really disagree. We argue that in many of (...)
  44. The Revisionist’s Rubric: Conceptual Engineering and the Discontinuity Objection.Michael Prinzing - 2017 - Inquiry : An Interdisciplinary Journal of Philosophy:1-27.
    This paper is about conceptual engineering. Specifically, it discusses a common objection to CE, which I call the Discontinuity Objection. According to the Discontinuity Objection, CE leads to problematic discontinuities in subject and/or inquiry – making it philosophically uninteresting or irrelevant. I argue that a conceptual engineer can dismiss the Discontinuity Objection by showing that the pre-engineering concept persists through the proposed changes. In other words, the Discontinuity Objection does not apply if the proposal involves identity-preserving changes. Two existing views (...)
  45. Genealogy and Knowledge-First Epistemology: A Mismatch?Matthieu Queloz - forthcoming - Philosophical Quarterly.
    This paper examines three reasons to think that Craig's genealogy of the concept of knowledge is incompatible with knowledge-first epistemology and finds that far from being incompatible with it, the genealogy lends succour to it. This reconciliation turns on two ideas. First, the genealogy is not history, but a dynamic model of needs. Second, by recognising the continuity of Craig's genealogy with Williams's genealogy of truthfulness, we can see that while both genealogies start out from specific needs explaining what drives (...)
  46. Replies to Bacon, Eklund, and Greenough on Replacing Truth.Kevin Scharp - forthcoming - Inquiry : An Interdisciplinary Journal of Philosophy:1-54.
    Andrew Bacon, Matti Eklund, and Patrick Greenough have individually proposed objections to the project in my book, Replacing Truth. Briefly, the book outlines a conceptual engineering project – our defective concept of truth is replaced for certain purposes with a team of concepts that can do some of the jobs we thought truth could do. Here, I respond to their objections and develop the views expressed in Replacing Truth in various ways.
  47. Truth, the Liar, and Relativism.Kevin Scharp - 2013 - Philosophical Review 122 (3):427-510.
    This essay proposes a theory of the nature and logic of truth on which truth is an inconsistent concept that should be replaced for certain theoretical purposes. The paradoxes associated with truth (for example, the liar) and the pattern of failures in our attempts to deal with them suggest that truth is an inconsistent concept. The first part of the essay describes a pair of replacement concepts, which the essay dubs ascending truth and descending truth, along with an axiomatic theory (...)
  48. Replacing Truth.Kevin Scharp - 2013 - Oxford University Press UK.
    Kevin Scharp proposes an original theory of the nature and logic of truth on which truth is an inconsistent concept that should be replaced for certain theoretical purposes. He argues that truth is best understood as an inconsistent concept, and proposes a detailed theory of inconsistent concepts that can be applied to the case of truth. Truth also happens to be a useful concept, but its inconsistency inhibits its utility; as such, it should be replaced with consistent concepts that can (...)
  49. Replacing Truth.Kevin Scharp - 2007 - Inquiry : An Interdisciplinary Journal of Philosophy 50 (6):606 – 621.
    Of the dozens of purported solutions to the liar paradox published in the past fifty years, the vast majority are "traditional" in the sense that they reject one of the premises or inference rules that are used to derive the paradoxical conclusion. Over the years, however, several philosophers have developed an alternative to the traditional approaches; according to them, our very competence with the concept of truth leads us to accept that the reasoning used to derive the paradox is sound. (...)
  50. Experimental Explication.Jonah N. Schupbach - 2017 - Philosophy and Phenomenological Research 94 (3):672-710.
    Two recently popular metaphilosophical movements, formal philosophy and experimental philosophy, promote what seem to be conflicting methodologies. Nonetheless, I argue that the two can be mutually supportive. I propose an experimentally-informed variation on explication, a powerful formal philosophical tool introduced by Carnap. The resulting method, which I call “experimental explication,” provides the formalist with a means of responding to explication's gravest criticism. Moreover, this method introduces a philosophically salient, positive role for survey-style experiments while steering clear of several objections that (...)
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