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David Ellerman [59]David P. Ellerman [1]
  1. A New Logical Measure for Quantum Information.David Ellerman - 2025 - Quantum Information and Computation 25:81-95.
    Starting at the logical level of the logic of partitions, dual to the usual Boolean logic of subsets, the notion of logical entropy, i.e., information as distinctions, is developed as the quantification of the distinctions of partitions—just as probability theory starts with the quantification of elements of subsets. Logical entropy is compared and contrasted with the usual notion of Shannon entropy. Then a semi-algorithmic procedure (from the mathematical folklore) is used to translate the notion of logical entropy at the set (...)
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  2. An Introduction to Partition Logic.David Ellerman - 2014 - Logic Journal of the IGPL 22 (1):94-125.
    Classical logic is usually interpreted as the logic of propositions. But from Boole's original development up to modern categorical logic, there has always been the alternative interpretation of classical logic as the logic of subsets of any given (nonempty) universe set. Partitions on a universe set are dual to subsets of a universe set in the sense of the reverse-the-arrows category-theoretic duality--which is reflected in the duality between quotient objects and subobjects throughout algebra. Hence the idea arises of a dual (...)
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  3. Follow the Math!: The Mathematics of Quantum Mechanics as the Mathematics of Set Partitions Linearized to (Hilbert) Vector Spaces.David Ellerman - 2022 - Foundations of Physics 52 (5):1-40.
    The purpose of this paper is to show that the mathematics of quantum mechanics (QM) is the mathematics of set partitions (which specify indefiniteness and definiteness) linearized to vector spaces, particularly in Hilbert spaces. That is, the math of QM is the Hilbert space version of the math to describe objective indefiniteness that at the set level is the math of partitions. The key analytical concepts are definiteness versus indefiniteness, distinctions versus indistinctions, and distinguishability versus indistinguishability. The key machinery to (...)
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  4. Counting distinctions: on the conceptual foundations of Shannon’s information theory.David Ellerman - 2009 - Synthese 168 (1):119-149.
    Categorical logic has shown that modern logic is essentially the logic of subsets (or "subobjects"). Partitions are dual to subsets so there is a dual logic of partitions where a "distinction" [an ordered pair of distinct elements (u,u′) from the universe U ] is dual to an "element". An element being in a subset is analogous to a partition π on U making a distinction, i.e., if u and u′ were in different blocks of π. Subset logic leads to finite (...)
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  5. Inalienable rights: A litmus test for liberal theories of justice.David Ellerman - 2010 - Law and Philosophy 29 (5):571-599.
    Liberal-contractarian philosophies of justice see the unjust systems of slavery and autocracy in the past as being based on coercion—whereas the social order in modern democratic market societies is based on consent and contract. However, the ‘best’ case for slavery and autocracy in the past were consent-based contractarian arguments. Hence, our first task is to recover those ‘forgotten’ apologia for slavery and autocracy. To counter those consent-based arguments, the historical anti-slavery and democratic movements developed a theory of inalienable rights. Our (...)
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  6. Where do Adjunctions Come From? Chimera Morphisms and Adjoint Functors in Category Theory.David Ellerman - 2025 - Foundations 5 (10):1-22.
    Category theory has foundational importance because it provides conceptual lenses to characterize what is important and universal in mathematics—with adjunction seeming to be the primary lens. Our topic is a theory showing “where adjoints come from”. The theory is based on object-to-object “chimera morphisms”, “heteromorphisms”, or “hets” between the objects of different categories (e.g., the insertion of generators as a set-to-group map). After showing that heteromorphisms can be treated rigorously using the machinery of category theory (bifunctors), we show that all (...)
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  7. The Labour Theory of Property and Marginal Productivity Theory.David Ellerman - 2016 - Economic Thought 5 (1):19.
    After Marx, dissenting economics almost always used 'the labour theory' as a theory of value. This paper develops a modern treatment of the alternative labour theory of property that is essentially the property theoretic application of the juridical principle of responsibility: impute legal responsibility in accordance with who was in fact responsible. To understand descriptively how assets and liabilities are appropriated in normal production, a 'fundamental myth' needs to be cleared away, and then the market mechanism of appropriation can be (...)
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  8. Is “capitalism” a misnomer?: on Marx’s “capitalism” and Knight’s “civilization”.David Ellerman - 2024 - European Journal of the History of Economic Thought 1.
    The name “capitalism” derives from Marx’s false analogy between medieval land ownership and the “ownership of the means of production.” However, unlike medieval land, capital goods can be rented out, e.g., by Frank Knight’s entrepreneur, and then the capital owner does not hold those management or product rights. What then is the characteristic institution in our civilization? It is the voluntary renting of workers. What then is the relationship between Classical Liberalism, the dominant philosophy behind Economics, and a lifetime labour (...)
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  9. A New Logic, a New Information Measure, and a New Information-Based Approach to Interpreting Quantum Mechanics.David Ellerman - 2024 - Entropy Special Issue: Information-Theoretic Concepts in Physics 26 (2).
    The new logic of partitions is dual to the usual Boolean logic of subsets (usually presented only in the special case of the logic of propositions) in the sense that partitions and subsets are category-theoretic duals. The new information measure of logical entropy is the normalized quantitative version of partitions. The new approach to interpreting quantum mechanics (QM) is showing that the mathematics (not the physics) of QM is the linearized Hilbert space version of the mathematics of partitions. Or, putting (...)
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  10. A Fundamental Duality in the Exact Sciences: The Application to Quantum Mechanics.David Ellerman - 2024 - Foundations 4 (2):175-204.
    There is a fundamental subsets–partitions duality that runs through the exact sciences. In more concrete terms, it is the duality between elements of a subset and the distinctions of a partition. In more abstract terms, it is the reverse-the-arrows of category theory that provides a major architectonic of mathematics. The paper first develops the duality between the Boolean logic of subsets and the logic of partitions. Then, probability theory and information theory (as based on logical entropy) are shown to start (...)
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  11. Logical Entropy: Introduction to Classical and Quantum Logical Information theory.David Ellerman - 2018 - Entropy 20 (9):679.
    Logical information theory is the quantitative version of the logic of partitions just as logical probability theory is the quantitative version of the dual Boolean logic of subsets. The resulting notion of information is about distinctions, differences and distinguishability and is formalized using the distinctions of a partition. All the definitions of simple, joint, conditional and mutual entropy of Shannon information theory are derived by a uniform transformation from the corresponding definitions at the logical level. The purpose of this paper (...)
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  12. Born Again! The Born Rule as a feature of superposition.David Ellerman - 2025 - International Journal of Quantum Foundations 11:57-72.
    Where does the Born Rule come from? We ask: “What is the simplest extension of probability theory where the Born rule appears”? This is answered by introducing “superposition events” in addition to the usual discrete events. Two-dimensional matrices (e.g., incidence matrices and density matrices) are needed to mathematically represent the differences between the two types of events. Then it is shown that those incidence and density matrices for superposition events are the (outer) products of a vector and its transpose whose (...)
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  13. On Property Theory.David Ellerman - 2014 - Journal of Economic Issues (3):601–624.
    A theory of property needs to give an account of the whole life-cycle of a property right: how it is initiated, transferred, and terminated. Economics has focused on the transfers in the market and has almost completely neglected the question of the initiation and termination of property in normal production and consumption (not in some original state or in the transition from common to private property). The institutional mechanism for the normal initiation and termination of property is an invisible-hand function (...)
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  14. The logic of partitions: Introduction to the dual of the logic of subsets: The logic of partitions.David Ellerman - 2010 - Review of Symbolic Logic 3 (2):287-350.
    Modern categorical logic as well as the Kripke and topological models of intuitionistic logic suggest that the interpretation of ordinary “propositional” logic should in general be the logic of subsets of a given universe set. Partitions on a set are dual to subsets of a set in the sense of the category-theoretic duality of epimorphisms and monomorphisms—which is reflected in the duality between quotient objects and subobjects throughout algebra. If “propositional” logic is thus seen as the logic of subsets of (...)
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  15. On Tocqueville, Pauperism, and Employee Ownership.David Ellerman - 2025 - International Journal for Public Policy, Law and Development 2 (1):4-10.
    There seems to be two rather different philosophies of aid to development and poverty relief. (1) The progressive/social-democratic approach is for the government or aid agencies to do more and more good things for people. (2) The classical-liberal approach is to change the underlying conditions so that people are empowered to do good things for themselves. In this paper, we analyze Alexis de Tocqueville’s approach to these questions in his First Memoir and his (unfinished) Second Memoir on Pauperism.
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  16. Are Corporations the Problem?David Ellerman - 2025 - Teorija in Praksa 62 (1):7-24.
    Are corporations the problem? Can reforms in the area of corporate responsibility (e.g., more stakeholder governance) lead to any real changes? The goal of the paper is to analyse debates concerning the Citizens United case, corporate personhood, the stakeholder theory, the affected interests principle and, finally, deeper fallacies with respect to the rights of capital embedded in Marxism and conventional economic theories of capital and corporate finance. The last analysis considers another institution at the root of the problems of the (...)
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  17. The Mean and the Variance as Dual Concepts in a Fundamental Duality.David Ellerman - 2025 - Axioms 14 (6).
    A basic duality arises throughout the mathematical and natural sciences. Traditionally, logic is thought to be based on the Boolean logic of subsets, but the development of category theory in the mid-twentieth century shows the duality between subsets and partitions (or equivalence relations). Hence, there is an equally fundamental dual logic of partitions. At a more basic or granular level, the elements of a subset are dual to the distinctions (pairs of elements in different blocks) of a partition. The quantitative (...)
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  18. Opening the Gates to Plato's Heaven.David Ellerman - 2025 - International Journal of Education and Social Science Research 8 (1).
    Substance is rivalrous and form is non-rivalrous (in the sense that information can be shared without diminishing one’s own). The recipe to "open the gates to Plato's Heaven" is by minimizing the role of rivalrous substance and maximizing the role of non-rivalrous form. This creates a whole series of different processes, positive feedback processes, vicious or virtuous circles, cumulative circular causality, and increasing returns phenomena, which are analysed in this paper.
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  19. An introduction to logical entropy and its relation to Shannon entropy.David Ellerman - 2013 - International Journal of Semantic Computing 7 (2):121-145.
    The logical basis for information theory is the newly developed logic of partitions that is dual to the usual Boolean logic of subsets. The key concept is a "distinction" of a partition, an ordered pair of elements in distinct blocks of the partition. The logical concept of entropy based on partition logic is the normalized counting measure of the set of distinctions of a partition on a finite set--just as the usual logical notion of probability based on the Boolean logic (...)
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  20. (1 other version)On Adjoint and Brain Functors.David Ellerman - 2016 - Axiomathes 26 (1):41-61.
    There is some consensus among orthodox category theorists that the concept of adjoint functors is the most important concept contributed to mathematics by category theory. We give a heterodox treatment of adjoints using heteromorphisms that parses an adjunction into two separate parts. Then these separate parts can be recombined in a new way to define a cognate concept, the brain functor, to abstractly model the functions of perception and action of a brain. The treatment uses relatively simple category theory and (...)
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  21. Why Delayed Choice Experiments do NOT imply Retrocausality.David Ellerman - 2015 - Quantum Studies: Mathematics and Foundations 2 (2):183-199.
    There is a fallacy that is often involved in the interpretation of quantum experiments involving a certain type of separation such as the: double-slit experiments, which-way interferometer experiments, polarization analyzer experiments, Stern-Gerlach experiments, and quantum eraser experiments. The fallacy leads not only to flawed textbook accounts of these experiments but to flawed inferences about retrocausality in the context of delayed choice versions of separation experiments.
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  22. Rethinking Libertarianism: Elizabeth Anderson's Private Government.David Ellerman - 2018 - Challenge 61:156-182.
    In her recent book Private Government, Elizabeth Anderson makes a powerful but pragmatic case against the abuses experienced by employees in conventional corporations. The purpose of this review-essay is to contrast Anderson’s pragmatic critique of many abuses in the employment relation with a principled critique of the employment relationship itself. This principled critique is based on the theory of inalienable rights that descends from the Reformation doctrine of the inalienability of conscience down through the Enlightenment in the abolitionist, democratic, and (...)
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  23. Does Classical Liberalism Imply Democracy?David Ellerman - 2015 - Ethics and Global Politics 8 (1):29310.
    There is a fault line running through classical liberalism as to whether or not democratic self-governance is a necessary part of a liberal social order. The democratic and non-democratic strains of classical liberalism are both present today—particularly in America. Many contemporary libertarians and neo-Austrian economists represent the non-democratic strain in their promotion of non-democratic sovereign city-states (startup cities or charter cities). We will take the late James M. Buchanan as a representative of the democratic strain of classical liberalism. Since the (...)
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  24. On the Renting of Persons: The Neo-Abolitionist Case Against Today's Peculiar Institution.David Ellerman - 2015 - Economic Thought 4 (1):1-20.
    Liberal thought (in the sense of classical liberalism) is based on the juxtaposition of consent to coercion. Autocracy and slavery were seen as based on coercion whereas today's political democracy and economic 'employment system' are based on consent to voluntary contracts. This paper retrieves an almost forgotten dark side of contractarian thought that based autocracy and slavery on explicit or implicit voluntary contracts. To answer these 'best case' arguments for slavery and autocracy, the democratic and abolitionist movements forged arguments not (...)
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  25. Category Theory and Set Theory as Theories about Complementary Types of Universals.David Ellerman - 2017 - Logic and Logical Philosophy 26 (2):145-162.
    Instead of the half-century old foundational feud between set theory and category theory, this paper argues that they are theories about two different complementary types of universals. The set-theoretic antinomies forced naïve set theory to be reformulated using some iterative notion of a set so that a set would always have higher type or rank than its members. Then the universal u F = {x | F(x)} for a property F(.) could never be self-predicative in the sense of uF ∈ (...)
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  26. Category theory and set theory as theories about complementary types of universals.David P. Ellerman - 2017 - Logic and Logical Philosophy 26 (2):1-18.
    Instead of the half-century old foundational feud between set theory and category theory, this paper argues that they are theories about two different complementary types of universals. The set-theoretic antinomies forced naïve set theory to be reformulated using some iterative notion of a set so that a set would always have higher type or rank than its members. Then the universal u_{F}={x|F(x)} for a property F() could never be self-predicative in the sense of u_{F}∈u_{F}. But the mathematical theory of categories, (...)
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  27. On the Labor Theory of Property: Is The Problem Distribution or Predistribution?David Ellerman - 2017 - Challenge: The Magazine of Economic Affairs 60 (2):171-188.
    Much of the recent discussion in progressive circles [e.g., Stiglitz; Galbraith; Piketty] has focused the obscene mal-distribution of wealth and income as if that was "the" problem in our economic system. And the proposed redistributive reforms have all stuck to that framing of the question. To put the question in historical perspective, one might note that there was a similar, if not more extreme, mal-distribution of wealth, income, and political power in the Antebellum system of slavery. Yet, it should be (...)
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  28. Democratic Ownership: Scale through leveraged conversions.David Ellerman, Tej Gonza & Kosta Juri - 2024 - In Jerome Warren, Jamin Hübner, Lucio Biggiero & Kemi Ogunyemi, Routledge Handbook on Cooperative Economics and Management. London: Routledge. pp. 250-61.
    Democratic ownership in the sphere of economic production is often contrasted with capitalist ownership along the lines of transferability of legal rights, such as profit and governance rights. If capitalist ownership implies full transferability of legal rights in production, democratic ownership anchors legal rights with the current generation of workers in the firm. A worker cooperative is generally considered the best practical proxy for a democratic firm (Ellerman, 2021; Erdal, 2012); however, worker cooperatives remain rare in contemporary economies, while the (...)
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  29. The Democratic Worker-Owned Firm (Routledge Revivals): A New Model for the East and West.David Ellerman - 2015 - Routledge.
    When this book was first published in 1990, there were massive economic changes in the East and significant economic challenges to the West. This critical analysis of democratic theory discusses the principles and forces that push both socialist and capitalist economies toward a common ground of workplace democratization. This book is a comprehensive approach to the theory and practice of the "Democratic firm" – from philosophical first principles to legal theory and finally to some of the details of financial structure. (...)
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  30. Worker Cooperatives and Other 'Cooperatives'.David Ellerman & Tej Gonza - 2024 - In Jerome Warren, Jamin Hübner, Lucio Biggiero & Kemi Ogunyemi, Routledge Handbook on Cooperative Economics and Management. London: Routledge. pp. 85-95.
    The short answer is whenever the actual activity of the “cooperative” is not carried out by the members but by employees. The problem is, of course, not in cooperation per se but in the hiring, employing, renting, or leasing of people to carry out the supposedly “cooperative” activities of the “cooperative” (Ellerman, 2021). Consider the case of a typical consumer cooperative. What is the cooperative activity carried out by the consumer‑members? They do not consume cooperatively; that would be a commune (...)
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  31. A critical analysis of different forms of employee ownership.David Ellerman & Tej Gonza - 2024 - International Review of Applied Economics 39 (2-3):261-276.
    From the 1970’s, there has been almost a half-century of development of employee-owned firms. There has been a wide variety of legal/capital structures that have been tried but too little analysis of which legal forms work or don’t work over the longer term, e.g. the transition from one generation of employee-owners to the next generation of employee owners. This paper provides a critical analysis of the major forms. These include the forms based on common ownership (Yugoslav self-managed firms and the (...)
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  32. Fallacies about Corporations: Comments on “Democratizing the Corporation”.David Ellerman - 2023 - Politics and Society 51 (2):225-242.
    This article comments on Isabelle Ferreras’s “Democratizing the Corporation.” The focus is on the conceptual framing, which arguably contains a number of problems that are quite common on the left and are thus doubly deserving of commentary and explanation.
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  33. Reclaiming Democratic Classical Liberalism.David Ellerman - 2020 - In D. Hardwick & L. Marsh, Reclaiming Liberalism. Palgrave Studies in Classical Liberalism. pp. 1-39.
    This essay shows that the principles of classical liberalism (e.g., James Buchanan) do not apply to the firm based on the employer-employee relationship. However, there is a deeper democratic classical liberalism tradition based on inalienable rights, but it rules out the employment or human rental relation.
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  34. How Category Theory Works.David Ellerman - manuscript
    The purpose of this paper is to show that the dual notions of elements & distinctions are the basic analytical concepts needed to unpack and analyze morphisms, duality, and universal constructions in the Sets, the category of sets and functions. The analysis extends directly to other concrete categories (groups, rings, vector spaces, etc.) where the objects are sets with a certain type of structure and the morphisms are functions that preserve that structure. Then the elements & distinctions-based definitions can be (...)
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  35. The Case for Workplace Democracy.David Ellerman - 2018 - In James Muldoon, Council Democracy: Towards a Democratic Socialist Politics. Routledge. pp. 210-227.
    In this chapter I seek to provide a theoretical defense of workplace democracy that is independent from and outside the lineage of Marxist and communist theory. Common to the council movements, anarcho- syndicalism and many other forms of libertarian socialism was the idea “that workers’ self- management was central.” Yet the idea of workers’ control has not been subject to the same theoretical development as Marx’s theory, not to mention capitalist economic theory. This chapter aims to contribute at a theoretical (...)
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  36. Probability Theory with Superposition Events.David Ellerman - manuscript
    In finite probability theory, events are subsets S⊆U of the outcome set. Subsets can be represented by 1-dimensional column vectors. By extending the representation of events to two dimensional matrices, we can introduce "superposition events." Probabilities are introduced for classical events, superposition events, and their mixtures by using density matrices. Then probabilities for experiments or `measurements' of all these events can be determined in a manner exactly like in quantum mechanics (QM) using density matrices. Moreover the transformation of the density (...)
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  37. On Double-Entry Bookkeeping: The Mathematical Treatment.David Ellerman - 2014 - Accounting Education: An International Journal 23 (5):483-501.
    Double-entry bookkeeping (DEB) implicitly uses a specific mathematical construction, the group of differences using pairs of unsigned numbers ("T-accounts"). That construction was only formulated abstractly in mathematics in the 19th century—even though DEB had been used in the business world for over five centuries. Yet the connection between DEB and the group of differences (here called the "Pacioli group") is still largely unknown both in mathematics and accounting. The precise mathematical treatment of DEB allows clarity on certain conceptual questions and (...)
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  38. On Concrete Universals: A Modern Treatment using Category Theory.David Ellerman - 2014 - AL-Mukhatabat.
    Today it would be considered "bad Platonic metaphysics" to think that among all the concrete instances of a property there could be a universal instance so that all instances had the property by virtue of participating in that concrete universal. Yet there is a mathematical theory, category theory, dating from the mid-20th century that shows how to precisely model concrete universals within the "Platonic Heaven" of mathematics. This paper, written for the philosophical logician, develops this category-theoretic treatment of concrete universals (...)
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  39. On the self-predicative universals of category theory.David Ellerman - manuscript
    This paper shows how the universals of category theory in mathematics provide a model (in the Platonic Heaven of mathematics) for the self-predicative strand of Plato's Theory of Forms as well as for the idea of a "concrete universal" in Hegel and similar ideas of paradigmatic exemplars in ordinary thought. The paper also shows how the always-self-predicative universals of category theory provide the "opposite bookend" to the never-self-predicative universals of iterative set theory and thus that the paradoxes arose from having (...)
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  40. Workplace Democracy and Human Development: The Example of the Postsocialist Transition Debate.David Ellerman - 2010 - Journal of Speculative Philosophy 24 (4):333-353.
    In the 1990s , a debate raged across the whole postsocialist world as well as in Western development agencies such as the World Bank about the best approach to the transition from various forms of socialism or communism to a market economy and political democracy. One of the most hotly contested topics was the question of the workplace being organized based on workplace democracy (e.g., various forms of worker ownership) or based on the conventional employer-employee relationship. Well before 1989, many (...)
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  41. Reclaiming Democratic Classical Liberalism.David Ellerman - 2020 - In Reclaiming Democratic Classical Liberalism. pp. 1-39.
    Classical liberalism is skeptical about governmental organizations "doing good" for people. Instead governments should create the conditions so that people individually (Adam Smith) and in associations (Tocqueville) are empowered to do good for themselves. The market implications of classical liberalism are well-known, but the implications for organizations are controversial. We will take James Buchanan as our guide (with assists from Mill and Dewey). Unpacking the implications of classical liberalism for the "science of associations" (Tocqueville) requires a tour through the intellectual (...)
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  42. Translatio versus Concessio: Retrieving the Debate about Contracts of Alienation with an Application to Today’s Employment Contract.David Ellerman - 2005 - Politics and Society 33 (3):449-480.
    Liberalism is based on the juxtaposition of consent to coercion. Autocracy and slavery were based on coercion whereas today’s political democracy and economic “employment system” are based on consent to voluntary contracts. This article retrieves an almost forgotten dark side of contractarian thought that based autocracy and slavery on explicit or implicit voluntary contracts. The democratic and antislavery movements forged arguments not simply in favor of consent but arguments that voluntary contracts to alienate aspects of personhood were invalid—which made the (...)
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  43. James M. Buchanan and Democratic Classical Liberalism.David Ellerman - 2018 - In Luca Fiorito, Scott Scheall & Carlos Eduardo Suprinyak, Research in the History of Economic Thought and Methodology. Emerald Publishing. pp. 149-163.
    Nancy MacLean’s book, Democracy in Chains, raised questions about James M. Buchanan’s commitment to democracy. This paper investigates the relationship of classical liberalism in general and of Buchanan in particular to democratic theory. Contrary to the simplistic classical liberal juxtaposition of “coercion vs. consent,” there have been from Antiquity onwards voluntary contractarian defenses of non-democratic government and even slavery—all little noticed by classical liberal scholars who prefer to think of democracy as just “government by the consent of the governed” and (...)
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  44. On the duality between existence and information.David Ellerman - manuscript
    Recent developments in pure mathematics and in mathematical logic have uncovered a fundamental duality between "existence" and "information." In logic, the duality is between the Boolean logic of subsets and the logic of quotient sets, equivalence relations, or partitions. The analogue to an element of a subset is the notion of a distinction of a partition, and that leads to a whole stream of dualities or analogies--including the development of new logical foundations for information theory parallel to Boole's development of (...)
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  45. Mac Lane, Bourbaki, and Adjoints: A Heteromorphic Retrospective.David Ellerman - manuscript
    Saunders Mac Lane famously remarked that "Bourbaki just missed" formulating adjoints in a 1948 appendix (written no doubt by Pierre Samuel) to an early draft of Algebre--which then had to wait until Daniel Kan's 1958 paper on adjoint functors. But Mac Lane was using the orthodox treatment of adjoints that only contemplates the object-to-object morphisms within a category, i.e., homomorphisms. When Samuel's treatment is reconsidered in view of the treatment of adjoints using heteromorphisms or hets (object-to-object morphisms between objects in (...)
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  46. On a Fallacy in the Kaldor-Hicks Efficiency-Equity Analysis.David Ellerman - 2014 - Constitutional Political Economy 25 (2):125-136.
    This paper shows that implicit assumptions about the numeraire good in the Kaldor-Hicks efficiency-equity analysis involve a "same-yardstick" fallacy (a fallacy pointed out by Paul Samuelson in another context). These results have negative implications for cost-benefit analysis, the wealth-maximization approach to law and economics, and other parts of applied welfare economics--as well as for the whole vision of economics based on the "production and distribution of social wealth.".
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  47. Parallel Experimentation: a basic scheme for dynamic efficiency.David Ellerman - 2014 - Journal of Bioeconomics 16 (3):259–287.
    Evolutionary economics often focuses on the comparison between economic competition and the process of natural selection to select the fitter members of a given population. But that neglects the other "half" of an evolutionary process, the mechanism for the generation of new possibilities that is key to dynamic efficiency. My topic is the process of parallel experimentation which I take to be a process of multiple experiments running concurrently with some form of common goal, with some semi-isolation between the experiments, (...)
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  48. A Graph-theoretic Method to Define any Boolean Operation on Partitions.David Ellerman - 2019 - The Art of Discrete and Applied Mathematics 2 (2):1-9.
    The lattice operations of join and meet were defined for set partitions in the nineteenth century, but no new logical operations on partitions were defined and studied during the twentieth century. Yet there is a simple and natural graph-theoretic method presented here to define any n-ary Boolean operation on partitions. An equivalent closure-theoretic method is also defined. In closing, the question is addressed of why it took so long for all Boolean operations to be defined for partitions.
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  49. On Classical and Quantum Logical Entropy.David Ellerman - manuscript
    The notion of a partition on a set is mathematically dual to the notion of a subset of a set, so there is a logic of partitions dual to Boole's logic of subsets (Boolean logic is usually mis-specified as "propositional" logic). The notion of an element of a subset has as its dual the notion of a distinction of a partition (a pair of elements in different blocks). Boole developed finite logical probability as the normalized counting measure on elements of (...)
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  50. Brain functors: A mathematical model for intentional perception and action.David Ellerman - 2016 - Brain: Broad Research in Artificial Intelligence and Neuroscience 7 (1):5-17.
    Category theory has foundational importance because it provides conceptual lenses to characterize what is important and universal in mathematics—with adjunctions being the primary lens. If adjunctions are so important in mathematics, then perhaps they will isolate concepts of some importance in the empirical sciences. But the applications of adjunctions have been hampered by an overly restrictive formulation that avoids heteromorphisms or hets. By reformulating an adjunction using hets, it is split into two parts, a left and a right semiadjunction. Semiadjunctions (...)
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