Besides their ideas and social networks, émigré intellectuals bring with themselves practices for engagement with intellectual work. This article focuses on one such practice: the intellectual Kreis [circle]. It focuses on the Geistkreis, an interwar Viennese interdisciplinary intellectual...

I develop a model of (individually rational) collective reality denial in groups, organizations and markets. Whether participants' tendencies toward wishful thinking reinforce or dampen each other is shown to hinge on a simple and novel mechanism. When an agent can expect to benefit from other's...

The literature on statistical discrimination shows that ex-ante identical groups may be differentially treated in discriminatory equilibria. This paper constructs a dynamic model of statistical discrimination and explores what happens to the individuals who nonetheless overcome the initial...

We study cheating as a collective-risk social dilemma in a group setting in which individuals are asked to report their actual outcomes. Misreporting their outcomes increases the individual's earnings but when the sum of claims in the group reaches a certain threshold, a risk of collective...

Previous experimental studies have shown that centralized management that a legitimate enforcer implements can be effective in improving cooperation in social dilemmas. The current study examines whether the presence of peer punishment opportunities, especially the chance of retaliating the...

Previous experimental studies have shown that centralized management that a legitimate enforcer implements can be effective in improving cooperation in social dilemmas. The current study examines whether the presence of peer punishment opportunities, especially the chance of retaliating the...

This paper studies how social media affect protest dynamics in China during 2009-2017. Based on 13.2 billion microblog posts, we use tweets and retweets to measure social media communication across cities and exploit its rapid expansion for identification. We find that despite strict government...

What determines whether someone complies with a social norm? The social identity approach offers a mechanism for norm compliance: a person who feels similar to a group identifies more with that group and, in turn, complies with the group's norms. We used an economics experiment to test this...

We survey the empirical literature in economics on the impact of media technologies on social capital. Motivated by a simple model of information and collective action, we cover a range of different outcomes related to social capital, from social and political participation to interpersonal...

There is a reward for a project that can be increased through ability, effort, and cheating. This is analysed for one agent and a team of two. As an extension, a preference for honesty is added, which can prevent cheating but not without limit and not so easily in the team context.

The purpose of this paper is to explore the contribution of urban social movements in addressing urban poverty, particularly the poverty experienced by the chronic (or long-term) poor in Southern towns and cities. After a Summary and Introduction, the substantive discussion begins in Section Two...

This paper studies both theoretically and empirically the determinants of group formation and of the degree of participation when the population is heterogeneous, both in terms of income and race or ethnicity. We are especially interested in whether and how much the degree of heterogeneity in...

We study when firms choose to install boards and their roles in a historical setting where neither boards nor their duties are mandated by law. Boards arise in firms with large, heterogenous shareholder bases. We propose that an important role of boards is to mediate between heterogenous...

Addressing public health externalities often requires community-level collective action. Each person's sanitation behavior can affect the health of neighbors. We report on a cluster randomized controlled trial conducted with 19,000 households in rural Bangladesh where we randomized (1) either...

We propose that community aspirations defined as the preferences for goals that increase communal well-being are an important determinant of cooperation in collective action problems. This paper conceptualizes community aspirations and investigates whether the proposed measure is associated with...

This paper investigates how the possibility of affecting group composition combined with the possibility of repeated interaction impacts cooperation within groups and surplus distribution. We developed and tested experimentally a Surplus Allocation Game where cooperation of four agents is needed...

Ostracism, or exclusion by peers, has been practiced since ancient times as a severe form of punishment against transgressors of laws or social norms. The purpose of this paper is to offer a comprehensive analysis on how ostracism affects behavior and the functioning of a social group. We...

We investigate the effects of group identity and income inequality on social preferences and polarization by means of a laboratory experiment. We split our subjects into two populations: in-group (representing "natives") and out-group ("migrants"). In-group subjects repeatedly vote whether an...

This paper links the theory of interest groups influence over the legislature with that of congressional control over the judiciary. The resulting framework reconciles the theoretical literature of lobbying with the negative available evidence on the impact of lobbying over legislative outcomes,...

Transgressions and injustice are an inevitable part of social life, both in interactions between individuals and between groups. But whereas conflict between individuals typically impacts only few, conflict between groups can be harmful to many – as is illustrated by disputes between nations,...

There is a reward for a project that can be increased through ability, effort, and cheating. This is analyzed for one agent and a team of two. As an extension, a preference for honesty is added, which can prevent cheating but not without limit and not so easily in the team context

Participatory work structure is a popular concept but its causal impacts in real world work groups have heretofore been unquantified and research has been Western-centric. We test the hypothesis that participatory group structure increases productivity for blue collar workers in a context where...

We survey and assess the literature on the positive and negative effects of ethnic diversity on economic policies and outcomes. Our focus is on both focus both cities in developed countries (the US) and villages in developing countries. We also consider the endogenous formation of political...

We study collective action under adverse incentives: each member of the group has a given budget ('use-it-or-lose-it') that is his private information and that can be used for contributions to make the group win a prize and for internal fights about this very prize. Even in the face of such...

Within a laboratory experiment we investigate a principal-agent game in which agents may, first, self-select into a group task (GT) or an individual task (IT) and, second, choose work effort. In their choices of task and effort the agents have to consider pay contracts for both tasks as offered...

This paper considers the semiparametric identification of endogenous and exogenous peer effects based on group size variation. We show that Lee (2006)'s linear-in-means model is generically identified, even when all members of the group are not observed. While unnecessary in general,...

Understanding whether criminal behavior is "contagious" is important for law enforcement and for policies that affect how people are sorted across social settings. We test the hypothesis that criminal behavior is contagious by using data from the Moving to Opportunity (MTO) randomized...

This paper studies the effect of endogenous group formation on the outcome in two types of coordination games with multiple Pareto-ranked equilibria. Endogenous group formation means that in each period players are free to choose among two or more groups within which they want to play the...

This paper studies the joint effect of fractionalization and inequality on the size of government. Within a political economy model of tax determination, I study the effect of voters with a group-based social conscience, so they care more about the well-being of those belonging to their own...

We consider a general equilibrium model where groups operating in a competitive market environment can have several members and make efficient collective consumption decisions. Individuals have the option to leave the group and make it on their own or join another group. We study the effect of...

The demographic history of the Jews in the Middle Ages may be characterized by two main phenomena: i) a sharp drop in the number of Jews until the beginning of the modern period, due mainly to conversions; and, ii) early urbanization. Until now, these features have been analyzed as primarily...

We investigate a setting in which members of a population, bifurcated into a majority and a minority, transact with randomly matched partners. All members are uniformly altruistic, and each transaction can be carried out cooperatively or through a market mechanism, with cooperative transactions...