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  • 1. Bursell, Moa
    et al.
    Jansson, Fredrik
    Stockholm University, Faculty of Humanities, Department of Archaeology and Classical Studies, Centre for Cultural Evolution. Mälardalen University, Sweden.
    Diversity preferences among employees and ethnoracial workplace segregation2018In: Social Science Research, ISSN 0049-089X, E-ISSN 1096-0317, Vol. 74, p. 62-76Article in journal (Refereed)
    Abstract [en]

    Ethno-racial workplace segregation increases already existing ethno-racial inequality. While previous research has identified discriminatory employers as drivers of workplace segregation, this study addresses the role of the employees. Sociological and social psychological theory suggest that people prefer to surround themselves with people who positively confirm their social identity or who contribute with higher group status. Through web-based surveys, we measure employee attitudes and preferences concerning ethno-racial workplace diversity, to what extent they differ by ethnicity/race, and if they contain intersectional patterns. Thereafter, we use simulation models to analyze the consequences for workplace segregation that these preferences would have, if realized. The main survey results showed that all ethno-racial groups favored their own in-group as colleagues, especially European Americans. As a secondary choice, the respondents preferred the out-group with the highest labor market status. Intersectional patterns were identified, as minority women were preferred as colleagues over minority men. Our simulation model, based on the results of two surveys on stated vs. indirectly revealed preferences, showed that employee preferences were at best not diverse enough to desegregate workplaces. When based on the most common preferences (i.e. excluding a few outliers), the simulations even suggested that these preferences can cause segregation. We relate these findings to Schelling's model of segregation.

  • 2.
    Buskell, Andrew
    et al.
    Stockholm University, Faculty of Humanities, Department of Archaeology and Classical Studies, Centre for Cultural Evolution. University of Cambridge, UK.
    Enquist, Magnus
    Stockholm University, Faculty of Humanities, Department of Archaeology and Classical Studies, Centre for Cultural Evolution.
    Jansson, Fredrik
    Stockholm University, Faculty of Humanities, Department of Archaeology and Classical Studies, Centre for Cultural Evolution. Mälardalen University, Sweden.
    A systems approach to cultural evolution2019In: Palgrave Communications, ISSN 2055-1045, Vol. 5, article id 131Article in journal (Refereed)
    Abstract [en]

    A widely accepted view in the cultural evolutionary literature is that culture forms a dynamic system of elements (or 'traits') linked together by a variety of relationships. Despite this, large families of models within the cultural evolutionary literature tend to represent only a small number of traits, or traits without interrelationships. As such, these models may be unable to capture complex dynamics resulting from multiple interrelated traits. Here we put forward a systems approach to cultural evolutionary research-one that explicitly represents numerous cultural traits and their relationships to one another. Basing our discussion on simple graph-based models, we examine the implications of the systems approach in four domains: (i) the cultural evolution of decision rules ('filters') and their influence on the distribution of cultural traits in a population; (ii) the contingency and stochasticity of system trajectories through a structured state space; (iii) how trait interrelationships can modulate rates of cultural change; and (iv) how trait interrelationships can contribute to understandings of inter-group differences in realised traits. We suggest that the preliminary results presented here should inspire greater attention to the role of multiple interrelated traits on cultural evolution, and should motivate attempts to formalise the rich body of analyses and hypotheses within the humanities and social science literatures.

  • 3.
    Enquist, Magnus
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Centre for Cultural Evolution. Stockholm University, Faculty of Science, Department of Zoology, Systematic Zoology.
    Jansson, Fredrik
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Centre for Cultural Evolution. Division of Mathematics and Physics, Mälardalen University; Institute for Futures Studies.
    Ghirlanda, Stefano
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Centre for Cultural Evolution. Department of Psychology, Brooklyn College; Department of Psychology, CUNY Graduate Center, New York.
    Michaud, Jérôme
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Centre for Cultural Evolution. Division of Mathematics and Physics, Mälardalen University.
    Cultural traits operating in senders are driving forces of cultural evolution2024In: Proceedings of the Royal Society of London. Biological Sciences, ISSN 0962-8452, E-ISSN 1471-2954, Vol. 291, no 2018, article id 20232110Article in journal (Refereed)
    Abstract [en]

    We introduce a mathematical model of cultural evolution to study cultural traits that shape how individuals exchange information. Current theory focuses on traits that influence the reception of information (receiver traits), such as evaluating whether information represents the majority or stems from a trusted source. Our model shifts the focus from the receiver to the sender of cultural information and emphasizes the role of sender traits, such as communicability or persuasiveness. Here, we show that sender traits are probably a stronger driving force in cultural evolution than receiver traits. While receiver traits evolve to curb cultural transmission, sender traits can amplify it and fuel the self-organization of systems of mutually supporting cultural traits, including traits that cannot be maintained on their own. Such systems can reach arbitrary complexity, potentially explaining uniquely human practical and mental skills, goals, knowledge and creativity, independent of innate factors. Our model incorporates social and individual learning throughout the lifespan, thus connecting cultural evolutionary theory with developmental psychology. This approach provides fresh insights into the trait-individual duality, that is, how cultural transmission of single traits is influenced by individuals, who are each represented as an acquired system of cultural traits.

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  • 4.
    Eriksson, Kimmo
    et al.
    Stockholm University, Faculty of Humanities, Department of Archaeology and Classical Studies, Centre for Cultural Evolution. Mälardalen University, Sweden.
    Jansson, Fredrik
    Stockholm University, Faculty of Humanities, Department of Archaeology and Classical Studies, Centre for Cultural Evolution. Linköping University, Sweden.
    Procedural priming of a numerical cognitive illusion2016In: Judgment and decision making, ISSN 1930-2975, E-ISSN 1930-2975, Vol. 11, no 3, p. 205-212Article in journal (Refereed)
    Abstract [en]

    A strategy activated in one task may be transferred to subsequent tasks and prevent activation of other strategies that would otherwise come to mind, a mechanism referred to as procedural priming. In a novel application of procedural priming we show that it can make or break cognitive illusions. Our test case is the 1/k illusion, which is based on the same unwarranted mathematical shortcut as the MPG illusion and the time-saving bias. The task is to estimate distances between values of fractions on the form 1/k. Most people given this task intuitively base their estimates on the distances between the denominators (i.e., the reciprocals of the fractions), which may yield very poor estimations of the true distances between the fractions. As expected, the tendency to fall for this illusion is related to cognitive style (Study 1). In order to apply procedural priming we constructed versions of the task in which the illusion is weak, in the sense that most people do not fall for it anymore. We then gave participants both strong illusion and weak illusion versions of the task (Studies 2 and 3). Participants who first did the task in the weak illusion version would often persist with the correct strategy even in the strong illusion version, thus breaking the otherwise strong illusion in the latter task. Conversely, participants who took the strong illusion version first would then often fall for the illusion even in the weak illusion version, thus strengthening the otherwise weak illusion in the latter task.

  • 5.
    Eriksson, Kimmo
    et al.
    Stockholm University, Faculty of Humanities, Centre for the Study of Cultural Evolution.
    Jansson, Fredrik
    Stockholm University, Faculty of Humanities, Centre for the Study of Cultural Evolution.
    Sjöstrand, Jonas
    Stockholm University, Faculty of Humanities, Centre for the Study of Cultural Evolution.
    Bentley’s conjecture on popularity toplist turnover under random copying2010In: The Ramanujan journal, ISSN 1382-4090, E-ISSN 1572-9303, Vol. 23, p. 371-396Article in journal (Refereed)
    Abstract [en]

    Bentley et al studied the turnover rate in popularity toplists in a ’random copying’ model of cultural evolution. Based on simulations of a model with population size N, list length ℓ and invention rate μ, they conjectured a remarkably simple formula for the turnover rate: ℓ√μ. Here we study an overlapping generations version of the random copying model, which can be interpreted as a random walk on the integer partitions of the population size. In this model we show that the conjectured formula, after a slight correction, holds asymptotically.

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  • 6.
    Jansson, Fredrik
    Stockholm University, Faculty of Humanities, Centre for Cultural Evolution. Institute for Futures Studies, Sweden.
    Pitfalls in Spatial Modelling of Ethnocentrism: A Simulation Analysis of the Model of Hammond and Axelrod2013In: JASSS: Journal of Artificial Societies and Social Simulation, E-ISSN 1460-7425, Vol. 16, no 3, article id 2Article in journal (Refereed)
    Abstract [en]

    Ethnocentrism refers to the tendency to behave differently towards strangers based only on whether they belong to the ingroup or the outgroup. It is a widespread phenomenon that can be triggered by arbitrary cues, but the origins of which are not clearly understood. In a recent simulation model by Hammond and Axelrod, an ingroup bias evolves in the prisoners' dilemma game. However, it will be argued here that the model does little to advance our understanding of ethnocentrism. The model assumes a spatial structure in which agents interact only with their immediate neighbourhood, populated mostly by clones, and the marker becomes an approximate cue of whether the partner is one. It will be shown that agents with an ingroup bias are successful compared to unconditional co-operators since they only exclude non-clones, but are outcompeted by less error-prone kin identifiers. Thus, the results of the simulations can be explained by a simple form of kin selection. These findings illustrate how spatial assumptions can alter a model to the extent that it no longer describes the phenomenon under study.

  • 7.
    Jansson, Fredrik
    Stockholm University, Faculty of Humanities, Department of Archaeology and Classical Studies, Centre for the Study of Cultural Evolution. Mälardalen University, Sweden; Linköping University, Sweden.
    Using register data to deduce patterns of social exchange2017In: Scandinavian Journal of Public Health, ISSN 1403-4948, E-ISSN 1651-1905, Vol. 45, p. 56-61Article in journal (Refereed)
    Abstract [en]

    This paper presents a novel method for deducting propensities for social exchange between individuals based on the choices they make, and based on factors such as country of origin, sex, school grades and socioeconomic background. The objective here is to disentangle the effect of social ties from the other factors, in order to find patterns of social exchange. This is done through a control-treatment design on analysing available data, where the treatment' is similarity of choices between socially connected individuals, and the control is similarity of choices between non-connected individuals. Structural dependencies are controlled for and effects from different classes are pooled through a mix of methods from network and meta-analysis. The method is demonstrated and tested on Swedish register data on students at upper secondary school. The results show that having similar grades is a predictor of social exchange. Also, previous results from Norwegian data are replicated, showing that students cluster based on country of origin.

  • 8.
    Jansson, Fredrik
    Stockholm University, Faculty of Humanities, Centre for the Study of Cultural Evolution. Mälardalen University, Sweden; Linköping University, Sweden.
    What games support the evolution of an ingroup bias?2015In: Journal of Theoretical Biology, ISSN 0022-5193, E-ISSN 1095-8541, Vol. 373, p. 100-110Article in journal (Refereed)
    Abstract [en]

    There is an increasing wealth of models trying to explain the evolution of group discrimination and an ingroup bias. This paper sets out to systematically investigate the most fundamental assumption in these models: in what kind of situations do the interactions take place? What strategic structures – games – support the evolution of an ingroup bias? More specically, the aim here is to find the prerequisites for when a bias also with respect to minimal groups – arbitrarily defined groups void of group-specific qualities – is selected for, and which cannot be ascribed to kin selection.

    Through analyses and simulations of minimal models of two-person games, this paper indicates that only some games are conducive to the evolution of ingroup favouritism. In particular, this class does not contain the prisoners’ dilemma, but it does contain anti-co-ordination and co-ordination games. Contrasting to the prisoners’ dilemma, these are games where it is not a matter of whether to behave altruistically, but rather one of predicting what the other person will be doing, and where I would benefit from you knowing my intentions.

    In anti-co-ordination games, on average, not only will agents discriminate between groups, but also in such a way that their choices maximise the sum of the available payoffs towards the ingroup more often than towards the outgroup. And in co-ordination games, even if agents do manage to co-ordinate with the whole population, they are more likely to co-ordinate on the socially optimal equilibrium within their group. Simulations show that this occurs most often in games where there is a component of risk-taking, and thus trust, involved. A typical such game is the stag hunt or assurance game.

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  • 9.
    Jansson, Fredrik
    et al.
    Stockholm University, Faculty of Humanities, Department of Archaeology and Classical Studies, Centre for Cultural Evolution. Mälardalen University, Sweden.
    Aguilar, Elliot
    Stockholm University, Faculty of Humanities, Department of Archaeology and Classical Studies, Centre for Cultural Evolution.
    Acerbi, Alberto
    Enquist, Magnus
    Stockholm University, Faculty of Humanities, Department of Archaeology and Classical Studies, Centre for Cultural Evolution. Stockholm University, Faculty of Science, Department of Zoology.
    Modelling cultural systems and selective filters2021In: Philosophical Transactions of the Royal Society of London. Biological Sciences, ISSN 0962-8436, E-ISSN 1471-2970, Vol. 376, no 1828, article id 20200045Article in journal (Refereed)
    Abstract [en]

    A specific goal of the field of cultural evolution is to understand how processes of transmission and selection at the individual level lead to population-wide patterns of cultural diversity and change. Models of cultural evolution have typically assumed that traits are independent of one another and essentially exchangeable. But culture has a structure: traits bear relationships to one another that affect the transmission and selection process itself. Here, we introduce a modelling framework to explore the effect of interdependencies on the process of learning. Through simulations, we find that introducing a simple structure changes the cultural dynamics. Based on a basic filtering mechanism for parsing trait relationships, more elaborate cultural filters emerge. In a mostly incompatible cultural domain of traits, these filters organize culture into mostly (but not fully) consistent and stable systems. Incompatible domains produce small homogeneous cultures, while more compatibility increases size, diversity and group divergence. When individuals copy based on a trait's features (here, its compatibility relationships), they produce more homogeneous cultures than when they copy based on the agent carrying the cultural trait. We discuss the implications of considering cultural systems and filters in the dynamics of cultural change. This article is part of the theme issue 'Foundations of cultural evolution'.

  • 10.
    Jansson, Fredrik
    et al.
    Stockholm University, Faculty of Humanities, Department of Archaeology and Classical Studies, Centre for Cultural Evolution.
    Birkelund, Gunn Elisabeth
    Lillehagen, Mats
    Segregation within school classes: Detecting social clustering in choice data2020In: PLOS ONE, E-ISSN 1932-6203, Vol. 15, no 6, article id e0233677Article in journal (Refereed)
    Abstract [en]

    We suggest a new method for detecting patterns of social clustering based on choice data. The method compares similar subjects within and between cohorts and thereby allows us to isolate the effect of peer influence from that of exogenous factors. Using this method on Norwegian register data, we address the question of whether students tend to cluster socially based on similar background. We find that common background correlates with making the same choices of curricular tracks, and that both exogenous preferences and peer influence matter. This applies to immigrant students from the same country, and, to some extent, to descendants of immigrants, but not to students from culturally similar countries. There are also small effects related to parents' education and income.

  • 11.
    Jansson, Fredrik
    et al.
    Stockholm University, Faculty of Humanities, Department of Archaeology and Classical Studies, Centre for Cultural Evolution. Mälardalen University, Sweden.
    Bursell, Moa
    Social consensus influences ethnic diversity preferences2018In: Social influence, ISSN 1553-4510, E-ISSN 1553-4529, Vol. 13, no 4, p. 192-208Article in journal (Refereed)
    Abstract [en]

    There is widespread segregation between workplaces along ethnic lines. We expand upon previous research on segregation and social influence by testing the effect of the latter on personal diversity preferences, specifically in employees' selection into hypothetical workplaces. In a survey study with 364 European American respondents in three waves, participants complied with social consensus preferences for either more or less workplace diversity. The new preference was sufficiently internalized to be retained largely unaltered a week later. Simulations suggest a self-reinforcing effect, where accurate social consensus information may be sufficient to change preferences. Given that initial choices were polarized, perceived social consensus can vary highly between people in society, and influencing this perception may feed back into greater acceptance of minorities.

  • 12.
    Jansson, Fredrik
    et al.
    Stockholm University, Faculty of Humanities, Centre for the Study of Cultural Evolution. Institute for Future Studies.
    Lindenfors, Patrik
    Stockholm University, Faculty of Science, Department of Zoology, Animal Ecology. Stockholm University, Faculty of Humanities, Centre for the Study of Cultural Evolution.
    Sandberg, Mikael
    Stockholm University, Faculty of Humanities, Centre for the Study of Cultural Evolution. Halmstad University .
    Democratic revolutions as institutional innovation diffusion: rapid adoption and survival of democracy2013In: Technological forecasting & social change, ISSN 0040-1625, E-ISSN 1873-5509, Vol. 80, no 8, p. 1546-1556Article in journal (Refereed)
    Abstract [en]

    Recent ‘democratic revolutions’ in Islamic countries call for a re-consideration of transitions to and from democracy. Transitions to democracy have often been considered the outcome of socio-economic modernization and therefore slow and incremental processes. But as a recent study has made clear, in the last century, transitions to democracy have mainly occurred through rapid leaps rather than slow and incremental steps. Here, we therefore apply an innovation and systems perspective and consider transitions to democracy as processes of institutional, and therefore systemic, innovation adoption. We show that transitions to democracy starting before 1900 lasted for an average of 50 years and a median of 56 years, while transitions originating later took an average of 4.6 years and a median of 1.7 years. However, our results indicate that the survival time of democratic regimes is longer in cases where the transition periods have also been longer, suggesting that patience paid in previous democratizations. We identify a critical ‘consolidation-preparing’ transition period of 12 years. Our results also show that in cases where the transitions have not been made directly from autocracy to democracy, there are no main institutional paths towards democracy. Instead, democracy seems reachable from a variety of directions. This is in line with the analogy of diffusion of innovations at the nation systems level, for which assumptions are that potential adopter systems may vary in susceptibility over time. The adoption of the institutions of democracy therefore corresponds to the adoption of a new political communications standard for a nation, in this case the innovation of involving in principle all adult citizens on an equal basis.

  • 13.
    Jansson, Fredrik
    et al.
    Stockholm University, Faculty of Humanities, Centre for Cultural Evolution. Linköping University, Sweden.
    Parkvall, Mikael
    Stockholm University, Faculty of Humanities, Department of Linguistics, General Linguistics.
    Strimling, Pontus
    Stockholm University, Faculty of Humanities, Centre for Cultural Evolution. Linköping University, Sweden.
    Modeling the Evolution of Creoles2015In: Language Dynamics and Change, ISSN 2210-5824, E-ISSN 2210-5832, Vol. 5, no 1, p. 1-51Article in journal (Refereed)
    Abstract [en]

    Various theories have been proposed regarding the origin of creole languages. Describing a process where only the end result is documented involves several methodological difficulties. In this paper we try to address some of the issues by using a novel mathematical model together with detailed empirical data on the origin and structure of Mauritian Creole. Our main focus is on whether Mauritian Creole may have originated only from a mutual desire to communicate, without a target language or prestige bias. Our conclusions are affirmative. With a confirmation bias towards learning from successful communication, the model predicts Mauritian Creole better than any of the input languages, including the lexifier French, thus providing a compelling and specific hypothetical model of how creoles emerge. The results also show that it may be possible for a creole to develop quickly after first contact, and that it was created mostly from material found in the input languages, but without inheriting their morphology.

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  • 14.
    Lindenfors, Patrik
    et al.
    Stockholm University, Faculty of Science, Department of Zoology, Animal Ecology. Stockholm University, Faculty of Humanities, Centre for the Study of Cultural Evolution.
    Jansson, Fredrik
    Stockholm University, Faculty of Humanities, Centre for the Study of Cultural Evolution.
    Sandberg, Mikael
    Stockholm University, Faculty of Humanities, Centre for the Study of Cultural Evolution.
    The cultural evolution of democracy: saltational changes in a political regime landscape2011In: PLOS ONE, E-ISSN 1932-6203, Vol. 6, no 11, p. e28270-Article in journal (Refereed)
    Abstract [en]

    Transitions to democracy are most often considered the outcome of historical modernization processes. Socio-economicchanges, such as increases in per capita GNP, education levels, urbanization and communication, have traditionally been found to be correlates or ‘requisites’ of democratic reform. However, transition times and the number of reform steps havenot been studied comprehensively. Here we show that historically, transitions to democracy have mainly occurred throughrapid leaps rather than slow and incremental transition steps, with a median time from autocracy to democracy of 2.4 years,and overnight in the reverse direction. Our results show that autocracy and democracy have acted as peaks in an evolutionary landscape of possible modes of institutional arrangements. Only scarcely have there been slow incremental transitions. We discuss our results in relation to the application of phylogenetic comparative methods in cultural evolutionand point out that the evolving unit in this system is the institutional arrangement, not the individual country which isinstead better regarded as the ‘host’ for the political system.

  • 15.
    Lindenfors, Patrik
    et al.
    Stockholm University, Faculty of Science, Department of Zoology, Animal Ecology. Stockholm University, Faculty of Humanities, Department of Archaeology and Classical Studies, Centre for Cultural Evolution. Institute for Future Studies, Sweden; University of Gothenburg, Sweden.
    Jansson, Fredrik
    Stockholm University, Faculty of Humanities, Department of Archaeology and Classical Studies, Centre for Cultural Evolution. Mälardalen University, Sweden.
    Yi-ting, Wang
    Lindberg, Staffan
    Investigating Sequences in Ordinal Data: A New Approach With Adapted Evolutionary Models2018In: Political Science Research and Methods, ISSN 2049-8470, E-ISSN 2049-8489, Vol. 6, no 3, p. 449-466Article in journal (Refereed)
    Abstract [en]

    This paper presents a new approach for studying temporal sequences across ordinal variables. It involves three complementary approaches (frequency tables, transitional graphs, and dependency tables), as well as an established adaptation based on Bayesian dynamical systems, inferring a general system of change. The frequency tables count pairs of values in two variables and transitional graphs depict changes, showing which variable tends to attain high values first. The dependency tables investigate which values of one variable are prerequisites for values in another, as a more direct test of causal hypotheses. We illustrate the proposed approaches by analyzing the V-Dem dataset, and show that changes in electoral democracy are preceded by changes in freedom of expression and access to alternative information.

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  • 16.
    Lindenfors, Patrik
    et al.
    Stockholm University, Faculty of Science, Department of Zoology, Animal Ecology. Stockholm University, Faculty of Humanities, Centre for the Study of Cultural Evolution.
    Sandberg, Mikael
    Högskolan i Halmstad.
    Jansson, Fredrik
    Stockholm University, Faculty of Humanities, Centre for the Study of Cultural Evolution.
    Demokratins evolution2012In: Gaudeamus, ISSN 0016-5247, no 1, p. 13-15Article in journal (Other (popular science, discussion, etc.))
  • 17.
    Parkvall, Mikael
    et al.
    Stockholm University, Faculty of Humanities, Department of Linguistics, General Linguistics.
    Jansson, Fredrik
    Stockholm University, Faculty of Humanities, Centre for Cultural Evolution.
    Strimling, Pontus
    Stockholm University, Faculty of Humanities, Centre for Cultural Evolution.
    Simulating the genesis of Mauritian2013In: Acta Linguistica Hafniensia. International Journal of Structural Linguistics, ISSN 0374-0463, E-ISSN 1949-0763, Vol. 45, no 2, p. 265-273Article in journal (Refereed)
    Abstract [en]

    This paper presents a computer simulation of the genesis of Mauritian Creole. The input consists of detailed demographic data and typological information on Mauritian as well as the languages which contributed to its birth. The simulation is deliberately a simplistic one – the idea is to have as few potentially controversial assumptions as possible built into the model, and add additional parameters only to the extent that its output differs from the real-world result. As it turns out, the model generates a language which is highly similar to Mauritian as it is spoken today, and thus, very little “tweaking” seems necessary. Most notably, the model produces the desired result without the postulation of targeted language acquisition, and while one cannot conclude that this was not a part of the creolisation process, our simulation suggests that it is not a necessary assumption.

  • 18. Smolla, Marco
    et al.
    Jansson, Fredrik
    Stockholm University, Faculty of Humanities, Department of Archaeology and Classical Studies, Centre for Cultural Evolution. Mälardalen University, Sweden.
    Lehmann, Laurent
    Houkes, Wybo
    Weissing, Franz J.
    Hammerstein, Peter
    Dall, Sasha R. X.
    Kuijper, Bram
    Enquist, Magnus
    Stockholm University, Faculty of Humanities, Department of Archaeology and Classical Studies, Centre for Cultural Evolution. Stockholm University, Faculty of Science, Department of Zoology.
    Underappreciated features of cultural evolution2021In: Philosophical Transactions of the Royal Society of London. Biological Sciences, ISSN 0962-8436, E-ISSN 1471-2970, Vol. 376, no 1828, article id 20200259Article, review/survey (Refereed)
    Abstract [en]

    Cultural evolution theory has long been inspired by evolutionary biology. Conceptual analogies between biological and cultural evolution have led to the adoption of a range of formal theoretical approaches from population dynamics and genetics. However, this has resulted in a research programme with a strong focus on cultural transmission. Here, we contrast biological with cultural evolution, and highlight aspects of cultural evolution that have not received sufficient attention previously. We outline possible implications for evolutionary dynamics and argue that not taking them into account will limit our understanding of cultural systems. We propose 12 key questions for future research, among which are calls to improve our understanding of the combinatorial properties of cultural innovation, and the role of development and life history in cultural dynamics. Finally, we discuss how this vibrant research field can make progress by embracing its multidisciplinary nature. This article is part of the theme issue 'Foundations of cultural evolution'.

  • 19.
    Strimling, Pontus
    et al.
    Stockholm University, Faculty of Humanities, Department of Archaeology and Classical Studies, Centre for Cultural Evolution. Institute for Futures Studies, Sweden.
    Vartanova, Irina
    Jansson, Fredrik
    Stockholm University, Faculty of Humanities, Department of Archaeology and Classical Studies, Centre for Cultural Evolution. Mälardalen University, Sweden.
    Eriksson, Kimmo
    Stockholm University, Faculty of Humanities, Department of Archaeology and Classical Studies, Centre for Cultural Evolution. Mälardalen University, Sweden.
    The connection between moral positions and moral arguments drives opinion change2019In: Nature Human Behaviour, E-ISSN 2397-3374, Vol. 3, no 9, p. 922-930Article in journal (Refereed)
    Abstract [en]

    Liberals and conservatives often take opposing positions on moral issues. But what makes a moral position liberal or conservative? Why does public opinion tend to become more liberal over time? And why does public opinion change especially fast on certain issues, such as gay rights? We offer an explanation based on how different positions connect with different kinds of moral arguments. Based on a formal model of opinion dynamics, we predicted that positions better connected to harm and fairness arguments will be more popular among liberals and will become more popular over time among liberals and conservatives. Finally, the speed of this trend will be faster the better the position connects to harm and fairness arguments. These predictions all held with high accuracy in 44years of polling on moral opinions. The model explains the connection between ideology and moral opinions, and generates precise predictions for future opinion change.

  • 20. Wang, Yi-ting
    et al.
    Lindenfors, Patrik
    Stockholm University, Faculty of Science, Department of Zoology, Animal Ecology. Stockholm University, Faculty of Humanities, Department of Archaeology and Classical Studies, Centre for the Study of Cultural Evolution.
    Sundström, Aksel
    Jansson, Fredrik
    Stockholm University, Faculty of Humanities, Department of Archaeology and Classical Studies, Centre for the Study of Cultural Evolution. Mälardalen University, Sweden.
    Paxton, Pamela
    Lindberg, Staffan I.
    Women's rights in democratic transitions: A global sequence analysis, 1900–20122017In: European Journal of Political Research, ISSN 0304-4130, E-ISSN 1475-6765, Vol. 56, no 4, p. 735-756Article in journal (Refereed)
    Abstract [en]

    What determines countries’ successful transition to democracy? This article explores the impact of granting civil rights in authoritarian regimes and especially the gendered aspect of this process. It argues that both men's and women's liberal rights are essential conditions for democratisation to take place: providing both women and men rights reduces an inequality that affects half of the population, thus increasing the costs of repression and enabling the formation of women's organising – historically important to spark protests in initial phases of democratisation. This argument is tested empirically using data that cover 173 countries over the years 1900–2012 and contain more nuanced measures than commonly used. Through novel sequence analysis methods, the results suggest that in order to gain electoral democracy a country first needs to furnish civil liberties to both women and men.

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