This 'state-of-the-art' collection of essays presents some of the best contemporary research into the dynamical processes underlying the formation, maintenance, metamorphosis and dissolution of norms. The volume combines formal modelling with more traditional analysis.

Large scale behavioral interventions work in some social contexts, but fail in others. The book explains this phenomenon with diverse personal and social behavioral motives, guided by research in economics, psychology, and international consulting done with UNICEF. The book offers tested tools that mobilize mass media, community groups, and autonomous "first movers" (or trendsetters) to alter harmful collective behaviors.

This book explores the view that normative behaviour is part of a complex of social mechanisms, processes and narratives that are constantly shifting. From this perspective, norms are not a kind of self-contained social object or fact, but rather an interplay of many things that we label as norms when we ‘take a snapshot’ of them at a particular instant. Further, this book pursues the hypothesis that considering the dynamic aspects of these phenomena sheds new light on them. The sort of issues that this perspective opens to exploration include: Of what is this complex we call a "social norm" composed of? How do new social norms emerge and what kind of circumstances might facilitate such an appearance? How context-specific are the norms and patterns of normative behaviour that arise? How do the cognitive and the social aspects of norms interact over time? How do expectations, beliefs and individual rationality interact with social norm complexes to effect behaviour? How does our social embeddedness relate to social constraint upon behaviour? How might the socio-cognitive complexes that we call norms be usefully researched?

In The Grammar of Society, first published in 2006, Cristina Bicchieri examines social norms, such as fairness, cooperation, and reciprocity, in an effort to understand their nature and dynamics, the expectations that they generate, and how they evolve and change. Drawing on several intellectual traditions and methods, including those of social psychology, experimental economics and evolutionary game theory, Bicchieri provides an integrated account of how social norms emerge, why and when we follow them, and the situations where we are most likely to focus on relevant norms. Examining the existence and survival of inefficient norms, she demonstrates how norms evolve in ways that depend upon the psychological dispositions of the individual and how such dispositions may impair social efficiency. By contrast, she also shows how certain psychological propensities may naturally lead individuals to evolve fairness norms that closely resemble those we follow in most modern societies.

The book focusses on questions of individual and collective action, the emergence and dynamics of social norms and the feedback between individual behaviour and social phenomena. It discusses traditional modelling approaches to social norms and shows the usefulness of agent-based modelling for the study of these micro-macro interactions. Existing agent-based models of social norms are discussed and it is shown that so far too much priority has been given to parsimonious models and questions of the emergence of norms, with many aspects of social norms, such as norm-change, not being modelled. Juvenile delinquency, group radicalisation and moral decision making are used as case studies for agent-based models of collective action extending existing models by providing an embedding into social networks, social influence via argumentation and a causal action theory of moral decision making. The major contribution of the book is to highlight the multifaceted nature of the dynamics of social norms, consisting not only of emergence, and the importance of embedding of agent-based models into existing theory.

Social norms are rules that prescribe what people should and should not do given their social surroundings and circumstances. Norms instruct people to keep their promises, to drive on the right, or to abide by the golden rule. They are useful explanatory tools, employed to analyze phenomena as grand as international diplomacy and as mundane as the rules of the road. But our knowledge of norms is scattered across disciplines and research traditions, with no clear consensus on how the term should be used. Research on norms has focused on the content and the consequences of norms, without paying enough attention to their causes. Social Norms reaches across the disciplines of sociology, economics, game theory, and legal studies to provide a well-integrated theoretical and empirical account of how norms emerge, change, persist, or die out. Social Norms opens with a critical review of the many outstanding issues in the research on norms: When are norms simply devices to ease cooperation, and when do they carry intrinsic moral weight? Do norms evolve gradually over time or spring up spontaneously as circumstances change? The volume then turns to case studies on the birth and death of norms in a variety of contexts, from protest movements, to marriage, to mushroom collecting. The authors detail the concrete social processes, such as repeated interactions, social learning, threats and sanctions, that produce, sustain, and enforce norms. One case study explains how it can become normative for citizens to participate in political protests in times of social upheaval. Another case study examines how the norm of objectivity in American journalism emerged: Did it arise by consensus as the professional creed of the press corps, or was it imposed upon journalists by their employers? A third case study examines the emergence of the norm of national self-determination: has it diffused as an element of global culture, or was it imposed by the actions of powerful states? The book concludes with an examination of what we know of norm emergence, highlighting areas of agreement and points of contradiction between the disciplines. Norms may be useful in explaining other phenomena in society, but until we have a coherent theory of their origins we have not truly explained norms themselves. Social Norms moves us closer to a true understanding of this ubiquitous feature of social life.

This volume presents an unprecedented attempt to illustrate via agent based simulation the emergence of norms meant as prescribed conducts applied by the majority. The simulated scenarios are populated with cognitive agents generating norms by detecting and deciding to respect them.