The Condorcet efficiency of a social choice procedure is usually defined as the probability that this procedure coincides with the majority winner (or majority ordering) in random samples, given a majority winner exists (or given the majority ordering is transitive). Consequently, it is in effect a conditional probability that two sample statistics coincide, given certain side conditions. We raise a different issue of Condorcet efficiencies: What is the probability that a social choice procedure applied to a sample (...) matches with the majority preferences of the population from which the sample was drawn? We investigate the canonical case where the sample statistic is itself also majority rule and the samples are drawn from real world distributions gathered from national election surveys in Germany, France, and the United States. We relate the results to the existing literature on majority cycles and social homogeneity. We find that these samples rarely display majority cycles, whereas the probability that a sample misrepresents the majority preferences of the underlying population varies dramatically and always exceeds the probability that the sample displays cyclic majority preferences. Social homogeneity plays a fundamental role in the type of Condorcet efficiency investigated here. (shrink)

Under approval voting, each voter just distinguishes the candidates he approves of from those appearing as unacceptable. The preference approval voting is a hybrid version of the approval voting first introduced by Brams and Sanver The mathematics of preference, choice and order. Springer, Berlin, pp 215–237, 2009). Under PAV, each voter ranks all the candidates and then indicates the ones he approves. In this paper, we provide an analytical representation of the limiting probability that PAV elects the Condorcet winner (...) when she exists in three-candidate elections. We perform our analysis by assuming the assumption of the Extended Impartial Culture. The aim is to measure at which extend PAV performs better than AV both on the propensity of electing the Condorcet winner and on that of the non-election of the Condorcet loser. For this purpose, we also provide an analytical representation of the limiting probability that AV elects the Condorcet winner when she exists in three-candidate elections. Our representation of the limiting probability that AV elects the Condorcet winner is more general than that provided by Diss et al. Handbook on approval voting. Springer, Berlin, pp 255–283, 2010) and it leads to the same figures as the representation provided by Gehrlein and Lepelley. (shrink)

In a three-candidate election, a scoring rule s (s in [0,1]) assigns 1, s, and 0 points (respectively) to each first, second and third place in the individual preference rankings. The Condorcet efficiency of a scoring rule is defined as the conditional probability that this rule selects the winner in accordance with Condorcet criteria (three Condorcet criteria are considered in the paper). We are interested in the following question: What rule s has the greatest Condorcet (...) efficiency? After recalling the known answer to this question, we investigate the impact of social homogeneity on the optimal value of ?. One of the most salient results we obtain is that the optimality of the Borda rule (s=1/2) holds only if the voters act in an independent way. (shrink)

Consider an election in which each of the n voters casts a vote consisting of a strict preference ranking of the three candidates A, B, and C. In the limit as n→∞, which scoring rule maximizes, under the assumption of Impartial Anonymous Culture (uniform probability distribution over profiles), the probability that the Condorcet candidate wins the election, given that a Condorcet candidate exists? We produce an analytic solution, which is not the Borda Count. Our result agrees with recent (...) numerical results from two independent studies, and contradicts a published result of Van Newenhizen (Economic Theory 2, 69–83. (1992)). (shrink)

According to a given quota q\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$q$$\end{document}, a candidate a\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$a$$\end{document} is beaten by another candidate b\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$b$$\end{document} if at least a proportion of q\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$q$$\end{document} individuals prefer b\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$b$$\end{document} to a\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$a$$\end{document}. (...) The q\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$q$$\end{document}-majority efficiency of a voting rule is the probability that the rule selects a candidate who is never beaten under the q\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$q$$\end{document}-majority, given that such a candidate exits. Closed form representations are obtained for the q\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$q$$\end{document}-majority efficiency of positional rules in three-candidate elections. It turns out that the q\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$q$$\end{document}-majority efficiency is: significantly greater for sequential rules than for simple positional rules; and very close to the q\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$q$$\end{document}-Condorcet efficiency, the conditional probability that a positional rule will elect the candidate who beats all others under the q\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$q$$\end{document}-majority, when one exists. (shrink)

When voters’ preferences on candidates are mutually coherent, in the sense that they are at all close to being perfectly single-peaked, perfectly single-troughed, or perfectly polarized, there is a large probability that a Condorcet Winner exists in elections with a small number of candidates. Given this fact, the study develops representations for Condorcet Efficiency of plurality rule as a function of the proximity of voters’ preferences on candidates to being perfectly single-peaked, perfectly single-troughed or perfectly polarized. We (...) find that the widely used plurality rule has Condorcet Efficiency values that behave in very different ways under each of these three models of mutual coherence. (shrink)

Nicolas de Condorcet (1743-1794), the innovating founder of mathematical thinking in politics, was the last great philosophe of the French Enlightenment and a central figure in the early years of the French Revolution. His political writings give a compelling vision of human progress across world history and express the hopes of that time in the future perfectibility of man. This volume contains a revised translation of 'The Sketch', written while in hiding from the Jacobin Terror, together with lesser-known writings (...) on the emancipation of women, the abolition of slavery, the meanings of freedom and despotism and reflections on revolutionary violence. The introduction by Steven Lukes and Nadia Urbinati sets these works in context and shows why Condorcet is of real interest today as we reinterpret the meaning of Enlightenment, the very idea of progress and the founding ideas of social democracy. (shrink)

Während Condorcets Schriften bislang nur unter dem Gesichtspunkt der Geschichtsphilosophie und mathematischen Entscheidungstheorie rezipiert wurden, präsentiert dieser Band Condorcet als einen zentralen politischen Ordnungsdenker der Französischen Revolution, als einen liberal-republikanischen Autor. Die in der Edition versammelten Quellentexte zeigen, dass er die menschenrechtlichen und demokratischen Leitideen am Ende des 18. Jh.s nachdrücklich artikulierte. Condorcets zentrales Anliegen besteht in der Suche nach einer institutionellen Form demokratischer Ordnung, die ein hohes Maß an bürgerschaftlicher Partizipation mit den liberalen Forderungen individueller Rechte verbindet. Die (...) Schriften zur Emanzipation von Sklaven, zum Bürgerrecht für Frauen, zum Begriff der Revolution sowie sein demokratischer Verfassungsentwurf von 1793 belegen seinen theoretisch komplexen und innovativen Versuch, Antworten auf die Herausforderungen demokratischer Legitimität zu finden. (shrink)

v. 1. Cinq mémoires sur l'instruction publique -- v. 2. Rapport sur l'instruction publique.

This study employs the Porter hypothesis framework to test the moderating role of production cost in the relationship between resource-efficiency actions and financial performance for German small and medium-sized enterprises (SMEs). For this purpose, we employ the 2012, 2018, and 2021 Flash Eurobarometer surveys to analyze how consistently SMEs adopt resource-efficiency actions, and the impact of these actions on their performance and costs. We also conduct a generalized method of moments regression analysis (GMM). Among the seven resource-efficiency (...) actions proposed, saving water had a significant positive (negative) influence on financial performance in 2012, 2021, and (2018). Saving energy and using renewable energy had a positive and significant (insignificant) effect on financial performance in 2018, 2021, and (2012). Finally, selling scrap material to other companies had a positive and significant impact in all years. Furthermore, increased production costs negatively moderate the relationship between eco-efficiency action scores and financial performance. The results indicate that the “strong” version of the Porter hypothesis is not supported: It only holds when the implementation of eco-efficiency actions reduces production costs and increases financial performance. (shrink)

In this response, I reiterate my argument that price gouging undercuts the goal of equity in access to essential goods whereas Zwolinski emphasizes the importance of the efficient provision of essential goods above all other goals. I agree that the efficient provision of essential goods is important as I argue for the goal of equitable access to sufficient of the goods essential to living a minimally flourishing human life. However, efficiency is a means to this goal rather than the (...) end itself. Finally, I offer additional arguments against the non-worseness claim. (shrink)

This is a systematic evaluation of the main arguments for and against the market as an instrument of social organization, balancing efficiency and justice. It links the distinctive approaches of philosophy and economics to this evaluation.

The study aims to identify the efficiency of the university education performance from the perspective of postgraduate and undergraduate students in international and Palestinian universities. The analytical descriptive approach was used for this purpose and the questionnaire was used as a main tool for data collection. The study community consists of: post graduate students, (23850) graduate students and (146355) undergraduate students. The sample of the study was 378 graduate students and 383 undergraduate students. The random stratified sample was used. (...) The Statistical Package of Social Sciences (SPSS) was also used for data analysis. The study reached a number of results, the most important of which are: The level of efficiency of educational performance in Palestinian and international universities from the point of view of postgraduate and undergraduate students was high. And that there are significant differences between the average views of the sample of the study on the efficiency of educational performance in Palestinian and international universities attributed to the University and to the benefit of international universities. The study concluded many recommendations, the most important of which is the necessity of continuing to develop e-learning strategies that affect the efficiency of educational performance and research commensurate with the university's position in the local and international community, which puts it on the best classification between local and international universities through e-learning. (shrink)

Buildings energy consumption is growing gradually and put away around 40% of total energy use. Predicting heating and cooling loads of a building in the initial phase of the design to find out optimal solutions amongst different designs is very important, as ell as in the operating phase after the building has been finished for efficient energy. In this study, an artificial neural network model was designed and developed for predicting heating and cooling loads of a building based on a (...) dataset for building energy performance. The main factors for input variables are: relative compactness, roof area, overall height, surface area, glazing are a, wall area, glazing area distribution of a building, orientation, and the output variables: heating and cooling loads of the building. The dataset used for training are the data published in the literature for various 768 residential buildings. The model was trained and validated, most important factors affecting heating load and cooling load are identified, and the accuracy for the validation was 99.60%. (shrink)

Hayek and the Efficient Market Hypothesis are often seen as proposing a similar theory of prices. Hayek is seen as proposing to understand prices as information conveyer, incorporating inform...

Efficient markets are alienating if they inhibit us from recognizably caring about one another in our productive activities. I argue that efficient market behaviour is both exclusionary and fetishistic. As exclusionary, the efficient marketeer cannot manifest care alongside their market behaviour. As fetishistic, the efficient marketeer cannot manifest care in their market behaviour. The conjunction entails that efficient market behavior inhibits care. It doesn’t follow that efficient market behavior is vicious: individuals might justifiably commit to efficiency because doing so (...) serves the common good. But efficient market systems nevertheless have significant opportunity costs. The discussion yields a range of desiderata for non-alienated economic organization. (shrink)

In this paper, we criticize the current focus of the bio-based economy (BBE) on efficiency and control and demonstrate the contradictions that this causes. We elucidate these tensions by comparing the BBE to alternative conceptions of economy that emphasise the relevance of both the human condition and unfathomable nature in the macro ecological transition project. From Emmanuel Levinas’s philosophy, we take and extrapolate two major concepts—il y a and enjoyment—that help to re-evaluate the status of both nature and the (...) human subject involved in environmental instability. From this analysis, we evaluate current economic practice in close relation to the deteriorating environment to contribute to a conception of an economy that is truly based on principles of the biosphere. We conclude that humankind and nature are notions that must be always considered in this encompassing and topical effort and explain how they have been fundamentally overlooked in current thought on the bio-based and circular economy. (shrink)

Resolution and cut-free LK are the most popular propositional systems used for logical automated reasoning. The question whether or not resolution and cut-free LK have the same efficiency on the system of CNF formulas has been asked and studied since 1960 425–467). It was shown in Cook and Reckhow, J. Symbolic Logic 44 36–50 that tree resolution has super-polynomial speed-up over cut-free LK. Naturally, the current issue is whether or not resolution and cut-free LK expressed as directed acyclic graphs (...) have the same efficiency. In this paper, we introduce a new algorithm to eliminate atomic cuts and show that cut-free LK polynomially simulates resolution when the input formula is expressed as a k-CNF formula. As a corollary, we show that regular resolution does not polynomially simulate cut-free LK . We also show that cut-free LK polynomially simulates regular resolution. (shrink)

As liberal democracies, what can the United States, Europe, and Japan be expected to embrace as “democratic” solutions to global environmental problems such as climate change? It is our argument that contradictions in liberal democratic politics lead these states to advocate solutions that are nature-as-commodity oriented and that idealize the notion of “managed nature.” In the case of climate change, we specifically argue that liberal democracies can be expected to pursue a policy regime of “efficient global warming.”.

Since its inception, Shannon's information theory has attracted interest for the study of language and music. Recently, a wide range of converging studies have shown how efficient communication pervades language, from phonetics to syntax. Efficient principles imply that more resources should be assigned to highly informative items. For instance, average information content was shown to be a better predictor of word length than frequency, revisiting the famous Zipf's law. However, in spite of the success of the efficient communication framework in (...) the study of language and speech, very little work has investigated its relevance in the analysis of music. Here, we examine the organization of harmonic information in two large corpora of Western music, one made of MIDI files directly sequenced from scores, and the other made of MIDI recordings of live performances of highly skilled piano players. We show that there is a clear positive relationship between (contextual) information content of harmonic sequences and two essential musical properties, namely duration and loudness: the more unexpected a harmonic event is, the longer and the louder it is. (shrink)

Efficiency and equity are central concepts for the normative assessment of health policy. Drawing on the work of academic philosophers and philosophically sophisticated economists, this article identifies important philosophical questions implicated by the notions of efficiency and equity and then summarizes influential answers to them. Promising avenues for further philosophical research are also highlighted, especially in the context of health equity and its elusive ethical foundations.

This paper proves two theorems for homogeneous juries that arise from different solutions to the problem of aggregation of dichotomous choice. In the first theorem, negative correlation increases the competence of the jury, while positive correlation has the opposite effect. An enlargement of the jury with positive correlation can be detrimental up to a certain size, beyond which it becomes beneficial. The second theorem finds a family of distributions for which correlation has no effect on a jury’s competence. The approach (...) allows us to compute the bounds on a jury’s competence as the maximum and minimum probability of it being correct for a given individual competence and dependence structure. (shrink)

A distinguishing feature of neural computation and information processing is that it fits models that describe the most efficient strategies for performing different cognitive tasks. Efficiency determines a distinctive sense of teleology involving optimal performance and resource management through a specific strategy. I articulate this kind of teleology and call it efficient teleological function. I argue that efficient teleological function is compatible with mechanistic explanation and, most likely, neural computational mechanisms are efficiently functional in this sense. They are members (...) of a distinctive class of computational mechanisms whose efficiency is intertwined with their functionality. This is illustrated by widely discussed approaches to mind, such as Barlow’s efficient coding hypothesis or the ones associated with the so-called “predictive mind”, which propose that the brain employs highly efficient coding strategies to save energy resources that are critical to the organism’s survival. (shrink)

Efficiency requires legislative political institutions. There are many ways efficiency can be promoted, and so an ongoing legislative institution is necessary to resolve this choice in a politically sustainable and economically flexible way. This poses serious problems for classical liberal proposals to constitutionally protect markets from government intervention, as seen in the work of Ilya Somin, Guido Pincione & Fernando Tesón and others. The argument for the political nature of efficiency is set out in terms of both (...) Pareto optimality and aggregate welfare maximisation, and similar arguments can be generalised to other social values. (shrink)

Relational egalitarians argue that workplace hierarchy is wrong or unjust. However, even if workplace hierarchy is morally deficient in one respect, the efficiency of hierarchical cooperation might vindicate hierarchy. This paper assesses the extent to which relational egalitarians must make concessions to workplace hierarchy for the sake of efficiency. I argue that considerations of hierarchy provide egalitarians with reasons that make workplace hierarchy tolerable despite being unjustified, and, moreover, that under a predominantly hierarchical status quo, the practical import (...) of egalitarian reasons is unlikely to be undercut. This can be the case even if social hierarchy sometimes constitutes social cooperation. (shrink)

In this paper, I examine some main threads of the identification stage of Scotus's project in the fourth chapter of De Primo, where he tries to show that a first efficient cause must have the attributes of simplicity, intellect, will, and infinity. Many philosophers are favorably disposed towards one or another argument such as Scotus's (e.g., the cosmological argument from contingency) purporting to show that there is an absolutely first efficient cause. How far can Scotus take us from this starting (...) point towards the ultimate aim of establishing the existence of a being more recognizably identifiable as God? (shrink)

This volume is a collection of new essays by specialists that trace the concept of efficient causation from its discovery in Ancient Greece, through its development in late antiquity, the medieval period, and modern philosophy, to its use in contemporary metaphysics and philosophy of science.

Efficiency has become of central importance in health care and is seen as wholly laudable. It appears to offer a precise and objective means of evaluating and comparing institutions, practices and individuals, and is a principle that underlies techniques of cost-benefit analysis and other methods of option appraisal. However, there is a need to examine the concept of efficiency and explore the problems of its application within health care. Efficiency is a value laden notion and it cannot (...) be used as a means of making value judgements from purely factual premises. We have to choose the inputs and outputs in our calculations, and what limits to set on their scope. Efficiency calculations may require us to measure what cannot be quantified, and to treat as commensurable what is incommensurable. There are circumstances in which considerations of efficiency are inappropriate or even immoral. (shrink)

Qualitative researchers, particularly those researching business and society topics, should embrace artificial intelligence (AI) to conduct efficient, explicatory, and equitable research but also exercise caution to avoid its pitfalls.