27. January 2014
Daniel Villatoro, Giulia Andrighetto, Jordi Brandts, Luis Gustavo Nardin, Jordi Sabater-Mir, and Rosaria Conte: The Norm-Signaling Effects of Group Punishment: Combining Agent-Based Simulation and Laboratory Experiments Social Science Computer Review 0894439313511396, first published on December 11, 2013
Punishment plays a crucial role in favoring and maintaining social order. Recent studies emphasize the effect of the norm-signaling function of punishment. However, very little attention has been paid so far to the potential of group punishment. We claim that when inflicted by an entire group, the recipient of punishment views it as expressing norms. The experiments performed in this work provide evidence that humans are motivated not only by material incentives that punishment imposes but also by normative information that it conveys. The same material incentive has a different effect on the individuals’ future compliance depending on the way it is implemented, having a stronger effect when it also conveys normative information. We put forward the hypothesis that by inflicting equal material incentives, group punishment is more effective in enhancing compliance than uncoordinated punishment, because it takes advantage of the norm-signaling function of punishment. In support of our hypothesis, we present cross-methodological data, that is, data obtained through agent-based simulation and laboratory experiments with human subjects. The combination of these two methods allows us to provide an explanation for the proximate mechanisms generating the cooperative behavior observed in the laboratory experiment.
13. January 2014
In the cycle of the aCrossSocial seminars, we announce for Jan. 22 Francesca Giardini:
What goes around comes around: How reputation can support cooperation in natural and artificial societies.
Discussant: Laura BARCA
21. December 2013
il 13 gennaio 2014, ore 17, presso la Sala delle Colonne dell’Università LUISS, Via Pola 12, Roma, si terrà la presentazione del libro Minding Norms. Mechanisms and Dynamics of Social Order in Agent Societies.
“Norms are prescribed conducts applied by the majority of
people. Getting across cultures and centuries, norms
evolved to rule all human relationships, from the most
formal to the most intimate. Impinging on any sphere of
life, from religious to political, norms affect social, moral,
and even aesthetical behaviours. They are enforced
through centralized sanctions or distributed control, and
originate through deliberate acts of issuing or from spon-
taneous interaction in informal settings. Despite ubiquity
and universality, norms are still awaiting for a general
comprehensive theory, simultaneously doing justice to
three intuitions: that, under variable contents, norms cor-
respond to a common notion; that, once brought about,
norms feedback on their producers, affecting their con-
ducts; and finally that before and in order to drive the
behaviours of individuals, norms must affect their beliefs
and goals: people must detect and accept norms before
converting them into observable behaviours.”
17. December 2013
Giulia Andrighetto has been awarded the Ricercat@mente Prize!
Jointly sponsored by the Consiglio Nazionale delle Ricerche and the Accademia Nazionale dei Lincei, the prize is for the best researcher under the age of 35 in the field of Humanities, Social Sciences and Cultural Knowledge. It aims to give young researchers greater visibility and promote talent and excellence in Italian Science.
Andrighetto received her award at a ceremony on 18 Novemeber, at the headquarters of the Consiglio Nazionale delle Ricerche in Rome.
1. October 2013
The introduction to the CMOT special issue with papers from ICORE 2011 is out! Yay!
Read the introduction here
This is how it starts:
Reputation is commonly defined as “the beliefs or opinions that are generally held about someone” . As such, reputation is the prototypical representative of social artifacts that we use to make sense out of social complexity. It shares with norms, responsibility, power, and trust – to cite our own favorite examples – the characteristic of making sense only in a social context. Reputation places itself in the most abstract position among these social artifacts.
Why is it so? Because when properly defined, reputation loosely connects with the object-level actions of the individual. First, in order to distinguish reputation in the proper sense, one must refer to some kind of majority rule – since it must be “generally held”. Second, reputation needs a model where the agent that elaborates and reasons on it must be endowed with a mind able to hold different levels of beliefs, since this agent must not confuse reputation with experience or evaluation. Third, while norms, power, trust and responsibility have all more or less direct connection to an action at the object level – violate or punish, exert, perform an uncertain transaction, gain attribute for an event – reputation only connects directly with the action of gossiping.