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La violence a multiples faces, toutes celles qu'on lui donne selon les soucis de l'heure et les jeunes font toujours partie de ces soucis. Le piège de la violence dans lequel le jeune peut tomber ne dépend pas uniquement de son agir, mais relève de la façon dont on appréhende cet agir en termes de violence. Ce piège ne dépend pas non plus uniquement de ce qu'est le jeune; il relève souvent de la manière dont on se saisit de sa personne pour en préciser le profil délinquant. Dans ce processus qui conduit souvent au pénal, le piège se referme sur le jeune et peut le détruire complètement. L

Collective behavior. --- Social psychology. --- Violence. --- Youth --- Youth and violence. --- Psychology. --- Violence and youth --- Violence --- Mass psychology --- Psychology, Social --- Human ecology --- Psychology --- Social groups --- Sociology --- Violent behavior --- Social psychology --- Behavior, Collective --- Crowd behavior --- Crowds --- Mass behavior --- Human behavior --- Social action --- Psychological aspects --- Comportement collectif. --- Psychologie sociale. --- Jeunesse --- Violence chez les jeunes. --- Psychologie. --- adolescent --- enfant --- comportement --- violence

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We study herd behavior in a laboratory financial market with financial market professionals. We compare two treatments, one in which the price adjusts to the order flow so that herding should never occur, and one in which event uncertainty makes herding possible. In the first treatment, subjects herd seldom, in accordance with both the theory and previous experimental evidence on student subjects. A proportion of subjects, however, engage in contrarianism, something not accounted for by the theory. In the second treatment, the proportion of herding decisions increases, but not as much as theory suggests; moreover, contrarianism disappears altogether.

Capitalists and financiers --- Investments --- Collective behavior --- Psychology --- Econometric models. --- Decision making --- Behavior, Collective --- Crowd behavior --- Crowds --- Mass behavior --- Investing --- Investment management --- Portfolio --- Financiers --- Investors --- Human behavior --- Social action --- Social psychology --- Finance --- Disinvestment --- Loans --- Saving and investment --- Speculation --- Businesspeople --- Exports and Imports --- Finance: General --- Financial Risk Management --- Gender Studies --- Empirical Studies of Trade --- International Financial Markets --- Education: General --- Economics of Gender --- Non-labor Discrimination --- General Financial Markets: General (includes Measurement and Data) --- International economics --- Education --- Gender studies, gender groups --- Trade balance --- Asset valuation --- Gender --- Securities markets --- Balance of trade --- Asset-liability management --- Sex role --- Capital market

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Penguins jumping off a cliff, economic forecasters and financial advisors speculating against a currency, and farmers using traditional methods in India are all practising social learning. Such learning from the behavior of others may and does lead to herds, crashes, and booms. These issues have become, over the last ten years, an exciting field of research in theoretical and applied economics, finance, and in other social sciences. This book provides both an informal introduction and in-depth insights into the subject. Each chapter is devoted to a separate issue: individuals learn from the observations of actions, the outcomes of these actions, and from what others say. They may delay or make an immediate decision; they may compete against others or gain from cooperation; they make decisions about investment, crop choices, and financial investments. The book highlights the similarities and the differences between the various cases.

Social learning --- Decision Making --- Collective behavior --- Mathematical models --- AA / International- internationaal --- 303.8 --- 330.2 --- 330.00 --- 305.971 --- Econometrische behandeling van een onderwerp. --- Economische analyse en research. Theorie van de informatie. --- Economische en sociale theorieën: algemeenheden. --- Speciale gevallen in econometrische modelbouw. --- 316 --- -Decision making --- Behavior, Collective --- Crowd behavior --- Crowds --- Mass behavior --- Human behavior --- Social action --- Social psychology --- Deciding --- Decision (Psychology) --- Decision analysis --- Decision processes --- Making decisions --- Management --- Management decisions --- Choice (Psychology) --- Problem solving --- Learning --- Socialization --- Sociologie --(algemeen) --- Psychology --- Decision making --- Business, Economy and Management --- Economics --- 316 Sociologie --(algemeen) --- Econometrische behandeling van een onderwerp --- Speciale gevallen in econometrische modelbouw --- Economische en sociale theorieën: algemeenheden --- Economische analyse en research. Theorie van de informatie --- Social learning. --- Decision making. --- Collective behavior. --- Mathematical models. --- Social learning - Mathematical models

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The authors of Social Identifications set out to make accessible to students of social psychology the social identity approach developed by Henri Tajfel, John Turner, and their colleagues in Bristol during the 1970's and 1980's. Michael Hogg and Dominic Abrams give a comprehensive and readable account of social identity theory as well as setting it in the context of other approaches and perspectives in the psychology of intergroup relations. They look at the way people derive their identity from the social groups to which they belong, and the consequences for their feelings, thoughts...

Collective behavior. --- Group identity. --- Intergroup relations. --- Social groups. --- Intergroup relations --- Group identity --- Collective behavior --- Social Change --- Sociology & Social History --- Social Sciences --- Behavior, Collective --- Crowd behavior --- Crowds --- Mass behavior --- Collective identity --- Community identity --- Cultural identity --- Social identity --- Conflict, Intergroup --- Intergroup conflict --- Relations, Intergroup --- Psychology --- Collectief bewustzijn --- Collectieve identiteit --- Conflict [Intergroup ] --- Conflict tussen groepen --- Conflit entre groupes --- Conscience collective --- Différence (sociologie) --- Groepen--Conflicten --- Groepsidentiteit --- Groupe [Identité de ] --- Groupes--Conflits --- Groups--Conflicts --- Identiteit [Sociale ] --- Identity [Collective ] --- Identity [Community ] --- Identity [Group ] --- Identity [Social ] --- Identité communautaire --- Identité de groupe --- Identité sociale --- Identités collectives --- Relaties tussen groepen --- Relations [Intergroup ] --- Relations entre groupes --- Social interaction --- Identity (Psychology) --- Social psychology --- Collective memory --- Human behavior --- Social action --- Social groups --- Interpersonal relationships --- E-books --- Comportement collectif --- Identité collective --- Relations intergroupes