When discussing the general inertia in climate change mitigation, it is common to approach the analysis either in terms of epistemic obstacles (climate change is too scientifically complex to be fully understood by all in its dramatic nature and/or to find space in the media) and/or moral obstacles (the causal link between polluting actions and social damage is too loose, both geographically and temporally, to allow individuals to understand the consequences of their emissions). In this chapter I maintain that both (...) categories of obstacles now play a secondary role: many people have a clear understanding of the physical and social dynamics involved in climate change. The main reason why so few manage to reduce their ecological footprint is an ethical short-circuit that does not allow most people to reveal their “true” climate-related preferences in their daily choices. This short-circuit manifests itself in two phenomena that can be analysed through the lens of moral psychology. First, as the possibility of anticipated utility approaches, individuals further discount expected future utility and may even reverse their preferences (due to the so-called immediacy multiplier, in addition to the better known and discussed future utility discounting). Second, individuals struggle to order their preferences transitively when presented with the opportunity to obtain small net marginal utilities in the short run. The intertemporal and collective structure of the climate problem creates fertile ground for both phenomena, which means that even those who are sincerely convinced of the need to contribute to climate change mitigation end up trapped in loops of procrastination, both first and second level. If, however, we can understand the origin of these phenomena, then we will be able to devise counteracting solutions that will speed up individual mitigation efforts. I will therefore briefly propose three ethical/public strategies to break the procrastination loop: pre-commitment; increasing the costs of marginal postponements; reducing the disutility of action that is likely to be postponed. (shrink)

A graph-theoretical approach as first outlined by Harary et al.1 is developed for solving the problem of aggregating a given set of individual preference orderings provided that no individual preferential judgment is inconsistent with the collective preference ordering obtained by aggregation.

Demographic research on fertility has almost exclusively focused on women, however, men’s fertility preferences are equally important to the understanding of the processes and mechanisms that affect fertility. This article analyzes the data from the qualitative study with young (19–34 year old) heterosexual childless Lithuanian men and ex­plores the relationship between fertility desires, visions of fatherhood and perceptions of masculinity. Our results show that independently of whether the study participants have internalized the “male breadwinner” norm, they modelled their fertility desires (...) according to their current financial situation and perceived future income. Their vi­sions of fatherhood were also often framed by the cultural ideal of a man who is strict, tough and is the main family provider. However, the vision of the father who actively participates in childrearing was also common. (shrink)

Macroeconomic events often require individuals and policy-makers to make decisions that they are not accustomed to making. For example, a sovereign debt crisis makes it necessary to either default on government debt, increase taxes, cut public spending or to impose a mixture of these measures. I argue that decisions on such matters are not derived from deep preferences; they require reflections and judgement under uncertainty. Past experiences and the interaction with other individuals are likely to influence the salience of preferences (...) in the situations of decision making. Using a simple model, I illustrate how the salience of preferences changes with different degrees of individuality and conformity. Individuality is associated with the importance of private habits, while conformity is related to the perceived dissonance between initial intuitions and social opinions. The results obtained from simple simulation exercises stress that a high degree of conformity or a low degree of individuality may lead to overreactions when social opinion makers err for a short period of time. At the same time, a low degree of conformity or a high degree of individuality or leads to delayed adjustments to new circumstances. (shrink)

Trait self-esteem (TSE) is an important personality resource for emotion regulation, yet the neural correlates of TSE and emotion regulation remain unclear. Therefore, we aimed to investigate the neural correlates of TSE with different emotion regulation strategies and identify different brain areas involved in the particular strategies. We accordingly adopted the resting-state functional connectivity (rsFC) analysis to uncover the neural pathways linking TSE and emotion regulation. 235 young adults (45.9% females, Mage = 21.58) were guided to undergo the MRI scans (...) and then complete the Rosenberg Self-Esteem Scale and the Emotion Regulation Questionnaire formed by two dimensions: cognitive reappraisal and expressive suppression. The results showed that TSE was positively correlated with left superior frontal gyrus (lSFG)-right middle frontal gyrus (rMFG) rsFC. Further mediation analysis indicated a mediated role of lSFG-rMFG rsFC in the link between TSE and cognitive reappraisal. In contrast, TSE was negatively correlated with the right frontal pole (rFP)-right precentral gyrus (rPrcG) rsFC, which played a mediated role in the link between TSE and expressive suppression. Overall, our findings suggest the neurofunctional underpinnings behind the preference for cognitive reappraisal in individuals with higher TSE, while individuals with lower TSE exhibit a greater propensity towards employing expressive suppression. (shrink)

Background To describe the preferences for disclosure of individual biomarker results among mothers participating in a longitudinal birth cohort. Methods We surveyed 343 mothers that participated in the Health Outcomes and Measures of the Environment Study about their biomarker disclosure preferences. Participants were told that the study was measuring pesticide metabolites in their biological specimens, and that the health effects of these low levels of exposure are unknown. Participants were asked whether they wanted to receive their results and their (...) child's results. In addition, they were asked about their preferred method (letter vs in person) and format (more complex vs less complex) for disclosure of results. Results Almost all of the study participants wanted to receive their individual results (340/343) as well as their child's results (342/343). However, preferences for receiving results differed by education level. Mothers with less than a college degree preferred in-person disclosure of results more often than mothers with some college education or a college degree (34.3% vs 17.4% vs 7.9%, p<0.001). Similarly, mothers with less than a college education preferred a less complex disclosure format than mothers with some college education or a college degree (59.7% vs 79.1% vs 86.3%, p<0.0001). Conclusion While almost all study participants preferred to receive results of their individual biomarker tests, level of education was a key factor in predicting preferences for disclosure of biomarker results. To ensure effective communication of this information, disclosure of biomarker results should be tailored to the education level of the study participants. (shrink)

Research on social transmission suggests that people preferentially transmit information about threats and social interactions. Such biases might be driven by the arousal that is experienced as part of the emotional response triggered by information about threats or social relationships. The current studies tested whether preferences for transmitting threat-relevant information are consistent with a functional motive to recruit social support. USA residents were recruited for six online studies. Studies 1a and 1B showed that participants more often chose to transmit positive, (...) low-arousal vignettes. Studies 2A and 2B showed higher intentions to transmit emotional vignettes to friends. Study 4 showed a preference for transmitting stories that participants had modified and were therefore novel and unique. Studies 2A and 3 suggest that motivations for seeking social support might influence transmission preferences. Overall, the findings are not easily accounted for by any of the major theories of social transmission. We discuss limitations of the current studies and directions for further research. (shrink)

Standard economic theory usually analyzes the decisions made by individuals as a rational process in which each individual has sound and consistent preferences and makes decisions according to the principle of subjective expected utility maximization. Starting from the pioneering work of Herbert Simon and the research of cognitive psychologists Kahneman and Tversky, the contributions provided by cognitive-behavioral theory have repeatedly shown that real agents make choices in a way that differs systematically from standard theory, hence highlighting its limits. Rather (...) than considering standard normative theory as false or unable to explain the data obtained by behavioral economists, several economists decided to develop new formal models that could include the results of different experiments and empirical observations that captured all dimensions of the choice made by an individual. In this sense, they proposed new models that were not intended to challenge standard theory but rather designed to provide a kind of psychological expansion to it. This article has the aim of describing and analyzing the advantages and limitations of these new models, which unfortunately are not always suited to describe the individual behavior, the individuals’ actions, or the equilibria due to the combination of the actions of several players. To overcome the limits of these models, we decided to take into consideration the unfortunately unfinished work of Michael Bacharach, who strived to understand the individual and collective forms of rationality without applying only analytical devices or a theoretical vision of the world but bringing rationality back to the perception level of the agents. (shrink)

In this paper, the empirical performance of several preference functionals is assessed using individual and group experimental data. We investigate if there is a risky choice theory that fits group decisions better than alternative theories, and if there are significant differences between individual and group choices. Experimental findings reported in this paper provide answers to both of those questions showing that expected utility gains a “winning” position over higher-level functionals when risky choices are undertaken by individuals as (...) well as by small groups. However, in the group experiment, alternatives improve their relative performance, a fact that hints at the existence of differences between individual and group choices. We interpreted this result as evidence that feelings-like disappointment aversion become stronger in group decision. (shrink)

Crutchfield and Redinger (2024) propose that the use of a chemical restraint that affects only a particular conscious state is ethically permissible if, and only if, (1) it is the least restrictive...

Fractal patterns offer one way to represent the rough complexity of the natural world. Whilst they dominate many of our visual experiences in nature, little large-scale perceptual research has been done to explore how we respond aesthetically to these patterns. Previous research (Taylor et al., 2011) suggests that the fractal patterns with mid-range fractal dimensions have universal aesthetic appeal. Perceptual and aesthetic responses to visual complexity have been more varied with findings suggesting both linear (Forsythe et al., 2011) and curvilinear (...) (Berlyne, 1970) relationships. Individual differences have been found to account for many of the differences we see in aesthetic responses but some, such as culture, have received little attention within the fractal and complexity research fields. This 2-study paper aims to test preference responses to fractal dimension and visual complexity, using a large cohort (N=443) of participants from around the world to allow universality claims to be tested. It explores the extent to which age, culture and gender can predict our preferences for fractally complex patterns. Following exploratory analysis that found strong correlations between fractal dimension and visual complexity, a series of linear mixed-effect models were implemented to explore if each of the individual variables could predict preference. The first tested a linear complexity model (likelihood of selecting the more complex image from the pair of images) and the second a mid-range fractal dimension model (likelihood of selecting an image within mid-range). Results show that individual differences can reliably predict preferences for complexity across culture, gender and age. However, in fitting with current findings the mid-range models show greater consistency in preference not mediated by gender, age or culture. This paper supports the established theory that the mid-range fractal patterns appear to be a universal construct underlying preference but also highlights the fragility of universal claims by demonstrating individual differences in preference for the interrelated concept of visual complexity. This highlights a current stalemate in the field of empirical aesthetics. (shrink)

In this article, we elicit both individuals’ and couples’ preferences assuming prospect theory (PT) as a general theoretical framework for decision under risk. Our experimental method, based on certainty equivalents, allows to infer measurements of utility and probability weighting at the individual level and at the couple level. Our main results are twofold. First, risk attitude for couples is compatible with PT and incorporates deviations from expected utility similar to those found in individual decision making. Second, couples’ attitudes (...) towards risk are found to be consistent with a mix of individual attitudes, women being more influent on couples’ preferences at low probability levels. (shrink)

The author, the mother of two children in Amsterdam, describes her birth experiences, the first in the hospital, the second at home.

In social networks, individual heterogeneity is widely existed, and an individual often tends to contact more frequently with friends of similar status or opinion. It is worth noting that the contact preference characteristic among heterogeneous individuals will have a significant effect on social contagions. Thus, we propose a social contagion model which takes the heterogeneity of individual influence and contact preference into account, and make a theoretical analysis of the social spreading process by developing an (...) edge-based compartmental theory. We find that the competition between simple contagion and complex contagion leads to the emergence of crossover phase transition phenomena when the influence of ordinary individuals is low: it changes from being hybrid to continuous, then to hybrid, and eventually to continuous phase transition with the increase of the contact probability of homogeneous individuals. However, it changes from being first-order to continuous phase transition when the influence strength of ordinary individuals is relatively high. In addition, there is an optimal value or range of contact probability of homogeneous individuals which maximizes the spreading size, and the optimal value or lower bound of the optimal range decreases with the increase of transmission probability. Our theoretical prediction results are in good agreement with the simulation results. (shrink)

British marriage statistics (N = 311,564) suggest that women of breeding age choose young men. Women past breeding age who could still be raising children extend choices to include older men. After this, women do not marry. The choices of men over 50 are restricted to women between 40 and 55: past breeding but young enough to be raising children; the few men over 50 that marry choose women in this age range.

It is both a moral tragedy and a travesty of social justice that responses to present unacceptable levels of Greenhouse Gases often involve constraining development, and that the burden of t...

Little is known about how people living with HIV should be engaged in the decision-making process for returning individual pharmacogenomic research results. This study explored the role people living with HIV want to play in making decisions about whether and how individual results of pharmacogenomic research should be presented to them. A convergent parallel mixed methods study was conducted, comprising a survey of 221 research participants and five deliberative focus group discussions with 30 purposively selected research participants. Most (...) participants (122, 55.2%) preferred the collaborative role, 67 (30.3%) preferred the active role and 32 (14.5%) preferred the passive role. Factors that significantly influenced preference for an active role compared with a collaborative role were marital status (OR: 0.282, p = 0.013), research experience (OR: 4.37, p = 0.028), and religion (OR: 2.346, p = 0.041). The reasons proffered for the active role included prior experience with antiretroviral treatment and increased exposure to research activities. The reasons given for preferring the passive role included limited level of awareness about the interaction between patients’ genes and drugs, trust in researchers to make the right decision, and fear of making decisions with harmful implications. Overall, findings from our study show that participants want to be engaged in the decision-making process. Research teams ought to provide adequate and simple information about the pharmacogenomic research and implications of the results to support participants’ informed decisions. (shrink)

The first goal of this study was to validate the Rational-Experiential Inventory (REI) and the Cognitive Reflection Test (CRT) through checking their relation to the transitivity axiom. The second goal was to test the relation between decision strategies and cognitive style as well as the relation between decision strategies and the transitivity of preferences. The following characteristics of strategies were investigated: requirements for trade-offs, maximization vs. satisficing and option-wise vs. attribute-wise information processing. Respondents were given choices between two multi-attribute options. (...) The options were designed so that the choice indicated which strategy was applied. Both the REI-R and the CRT were found to be good predictors of the transitivity of preferences. Respondents who applied compensatory strategies and the maximization criterion scored highly on the REI-R and in the CRT, whereas those who applied the satisficing rule scored highly on the REI-R but not in the CRT. Attribute-wise information processing was related to low scores in both measurements. Option-wise information processing led to a high transitivity of preferences. (shrink)

Recently, a multinomial process tree model was developed to measure an agent’s consequence sensitivity, norm sensitivity, and generalized inaction/action preferences when making moral decisions (CNI model). However, the CNI model presupposed that an agent considersconsequences—norms—generalizedinaction/actionpreferences sequentially, which is untenable based on recent evidence. Besides, the CNI model generates parameters at the group level based on binary categorical data. Hence, theC/N/Iparameters cannot be used for correlation analyses or other conventional research designs. To solve these limitations, we developed the CAN algorithm to (...) computenormandconsequencesensitivities and overallaction/inactionpreferences algebraically in a parallel manner. We re-analyzed the raw data of the original CNI model to test the methodological predictions. Our results demonstrate that: (1) theCparameter is approximately equal between the CNI model and CAN algorithm; (2) theNparameter under the CNI model approximately equalsN/(1 −C) under the CAN algorithm; (3) theIparameter andAparameter are reversed around 0.5 – the larger theIparameter, the more the generalized inactionversusaction preference and the larger theAparameter, the more overall actionversusinaction preference; (4) tests of differences in parameters between groups with the CNI model and CAN algorithm led to almost the same statistical conclusion; (5) parameters from the CAN algorithm can be used for correlational analyses and multiple comparisons, and this is an advantage over the parameters from the CNI model. The theoretical and methodological implications of our study were also discussed. (shrink)

The article analyzes the contradictory patterns of cultural consumption of Russian youth in the sphere of cinema. Based on qualitative research, including focus group interviews with representatives of Generation Z, the article reveals the paradox of simultaneous desire for popular trends and rejection of massively popular content. The study shows that young people use social networks to inform themselves about movie trends, experiencing a FOMO syndrome, but at the same time exhibiting algorithmic fatigue and a critical attitude toward «overhyped» content. (...) Personal recommendations and trusted sources that act as a social filter play a key role in resolving this paradox. The results demonstrate Generation Z’s adaptive strategies for navigating the algorithmic media environment, balancing the needs of social integration and individual authenticity. (shrink)

Economics without Preferences lays out a new microeconomics – a theory of choice behavior, markets, and welfare – when agents lack the preferences and marginal judgments that economics normally relies on. Agents without preferences defy the rules of the traditional model of rational choice but they can still systematically pursue their interests. The theory that results resolves several puzzles in economics. Status quo bias and other anomalies of behavioral economics shield agents from harm; they are expressions rather than violations of (...) rationality. Parts of economic orthodoxy go out the window. Agents will fail to make the fine-grained trade-offs between options ingrained in conventional economics, leading market prices to be volatile and cost-benefit analysis to break down. This book provides policy alternatives to fill this void. Governments can spur innovation, the main benefit markets can deliver, while sheltering agents from the upheavals that accompany economic change. (shrink)

We set up an original vaccination demand model inspired from prospect theory to explain Covid-19 vaccination intentions among French adults. Our extension accounts for patience and valuation of the vaccination as a common good in individual preferences. This framework can explain why over 40% of the French population intended to reject the Covid-19 vaccination at the end of 2020. The model explains differences in vaccination intentions across population subgroups and, most notably, accounts for heterogeneity in vaccination behaviors among younger (...) and older individuals that neither expected utility nor rank-dependent utility can offer. We calibrate the model based on an original survey carried out on a representative sample of the adult French population in November 2020 and allowing to identify curvatures of the value function, the discount rates and the willingness to cooperate. Out-of-sample analysis shows that this model can also predict the evolution of the vaccination intentions between November 2020 and March 2021. Finally, the model suggests that the international differences in the vaccination intentions are closely related to the vaccine-related valuation of the collective immunity. (shrink)

When making substituted judgments for incapacitated patients, surrogates often struggle to guess what the patient would want if they had capacity. Surrogates may also agonize over having the (sole) responsibility of making such a determination. To address such concerns, a Patient Preference Predictor (PPP) has been proposed that would use an algorithm to infer the treatment preferences of individual patients from population-level data about the known preferences of people with similar demographic characteristics. However, critics have suggested that even (...) if such a PPP were more accurate, on average, than human surrogates in identifying patient preferences, the proposed algorithm would nevertheless fail to respect the patient’s (former) autonomy since it draws on the ‘wrong’ kind of data: namely, data that are not specific to the individual patient and which therefore may not reflect their actual values, or their reasons for having the preferences they do. Taking such criticisms on board, we here propose a new approach: the Personalized Patient Preference Predictor (P4). The P4 is based on recent advances in machine learning, which allow technologies including large language models to be more cheaply and efficiently ‘fine-tuned’ on person-specific data. The P4, unlike the PPP, would be able to infer an individual patient’s preferences from material (e.g., prior treatment decisions) that is in fact specific to them. Thus, we argue, in addition to being potentially more accurate at the individual level than the previously proposed PPP, the predictions of a P4 would also more directly reflect each patient’s own reasons and values. In this article, we review recent discoveries in artificial intelligence research that suggest a P4 is technically feasible, and argue that, if it is developed and appropriately deployed, it should assuage some of the main autonomy-based concerns of critics of the original PPP. We then consider various objections to our proposal and offer some tentative replies. (shrink)

Neoclassical economics assumes that individuals have stable and context-independent preferences, and uses preference satisfaction as a normative criterion. By calling this assumption into question, behavioural findings cause fundamental problems for normative economics. A common response to these problems is to treat deviations from conventional rational choice theory as mistakes, and to try to reconstruct the preferences that individuals would have acted on, had they reasoned correctly. We argue that this preference purification approach implicitly uses a dualistic model of (...) the human being, in which an inner rational agent is trapped in an outer psychological shell. This model is psychologically and philosophically problematic. (shrink)

Preference is a basic notion in human behaviour, underlying such varied phenomena as individual rationality in the philosophy of action and game theory, obligations in deontic logic (we should aim for the best of all possible worlds), or collective decisions in social choice theory. Also, in a more abstract sense, preference orderings are used in conditional logic or non-monotonic reasoning as a way of arranging worlds into more or less plausible ones. The field of preference logic (...) (cf. Hansson [10]) studies formal systems that can express and analyze notions of preference between various sorts of entities: worlds, actions, or propositions. The art is of course to design a language that combines perspicuity and low complexity with reasonable expressive power. In this paper, we take a particularly simple approach. As preferences are binary relations between worlds, they naturally support standard unary modalities. In particular, our key modality ♦ϕ will just say that is ϕ true in some world which is at least as good as the current one. Of course, this notion can also be indexed to separate agents. The essence of this language is already in [4], but our semantics is more general, and so are our applications and later language extensions. Our modal language can express a variety of preference notions between propositions. Moreover, as already suggested in [9], it can “deconstruct” standard conditionals, providing an embedding of conditional logic into more standard modal logics. Next, we take the language to the analysis of games, where some sort of preference logic is evidently needed ([23] has a binary modal analysis different from ours). We show how a qualitative unary preference modality suffices for defining Nash Equilibrium in strategic games, and also the Backward Induction solution for finite extensive games. Finally, from a technical perspective, our treatment adds a new twist. Each application considered in this paper suggests the need for some additional access to worlds before the preference modality can unfold its true power.. (shrink)

Increasingly, experimental economists, when eliciting risk preferences using a set of pairwise-choice problems, have given subjects a third choice, namely that of saying, for example, ‘I am not sure about my preference’ or ‘I am not sure what to choose’. The implications for subjects of choosing this third option vary across experiments depending upon the incentive structure. Some experiments provide no direct financial implications: what is ‘played out’ at the end of the experiment is not influenced by subjects choosing (...) this middle column. In other experiments, if the middle column has been checked, then the payoff is determined by a randomisation of A and B. I report on an experiment, which adopts this latter incentive mechanism, and ask the question as to why people might choose this option, that is “why do they prefer randomisation?” I explore four distinct stories and compare their goodness-of-fit in explaining the data. My results show that the two of the four have the most empirical support. I conclude with a discussion of whether my results have anything to say about preference imprecision. (shrink)

Consider a group of people whose preferences satisfy the axioms of one of the current versions of utility theory, such as von Neumann-Morgenstern (1944), Savage (1954), or Bolker-Jeffrey (1965). There are political and economic contexts in which it is of interest to find ways of aggregating these individual preferences into a group preference ranking. The question then arises of whether methods of aggregation exist in which the group’s preferences also satisfy the axioms of the chosen utility theory, and (...) in which at the same time the aggregation process satisfies certain plausible conditions (e.g., the Pareto conditions below). (shrink)

In analytic feminist theory, adaptive preferences explain how individuals, particularly women, come to endorse preferences shaped by oppressive social contexts, thereby reinforcing, through their preferences, their own subordination. While rooted in feminist accounts of gendered oppression, the concept applies more broadly to subordinated groups. This chapter adopts this more general perspective, and it examines adaptive preference formation through the lens of extended cognition, particularly in the version that focuses on the process of cognitive enculturation. I show how this perspective (...) complements current views on the cognitive dimensions of adaptive preferences, and how it offers insight into key challenges within adaptive preference intervention design. (shrink)

In this paper, we explore the stability of the aggregation procedure of individual preferences. In particular, we propose the stability under the addition of social preference, which is a normative property of democratic collective decision making. We establish impossibility and possibility theorems for non-dictatorial aggregation procedures.

Economic models are founded in the idea of taking individuals' preferences as both known and given. This article explores the evolution of personal preferences, within a context of both entrepreneurial discovery and Objectivist philosophy. It begins by formalizing Ayn Rand's theory of Objectivism applied to human values, and continues by modeling preference changes similar to Schumpeter's theory of creative destruction—a process of self-discovery. Next the role of societal factors is examined in forming shared preference sets. Finally, the article (...) describes how the strength of human preferences is used to narrow choice sets in the presence of greater consumption options. (shrink)

International law lacks many of the standard features of domestic law. There are few legislative or judicial bodies with exclusive authority over particular jurisdictions or subject matters, the subjects regulated by international law typically must affirmatively consent to be bound by it, and supranational authorities with the power to coerce states to comply with international obligations are rare. How can a legal system with these features generate changes in state behavior? For many theories, the ability of international law to inform (...) and change individual preferences provides the answer. When voters care that treaty commitments be kept, or that international norms be honored, the theory goes, leaders are more likely to be able to make choices consistent with international obligations. Over the last decade, a literature has emerged testing these theories using surveys and experiments embedded in surveys. Multiple U.S. studies find that international law and international norm arguments shift public opinion in the direction of greater compliance by 4 to 20 percentage points. However, studies in foreign contexts are more mixed, with some backlash reported in countries in which international law is highly politicized. This Article describes the state of current knowledge about whether international law actually does change preferences, explains the limitations with existing research, and proposes avenues for future study. (shrink)

This paper deals with various connections that are found to exist between statistical estimation methods for decision-making and rules of group choice in the social choice area. Initially the aggregation of individual opinions is formulated as a pattern recognition problem; firstly it is shown that individual preferences lead to a natural representation in terms of binary patterns. Then we proceed to show how the search for a group preference pattern can be conducted by classifying the input (...) class='Hi'>preference patterns into various ‘pattern classes’ and using the resulting classification boundaries to define the area of mutual agreement over some of the available alternatives. This leads to a decision-theoretic problem which consists in defining a decision rule (for classification) that is least likely to lead to misrecognition of arbitrary preference patterns. A maximum likelihood solution is obtained and compared with some well-known rules of group decision-making. Other solutions are also possible, on the basis of different optimality criteria, and their social choice interpretation is suggested. Finally, a method using Coleman's linear model for attributes is applied to yield group decision rules by feature weighting of election issues. (shrink)