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Among residents of an informal housing area in Cairo, we examine how dictator giving varies by the social distance between subjects -friend versus stranger- and by the anonymity of the dictator. While giving to strangers is high under anonymity, we find -consistent with Leider et al. (2009)- that (i) a decrease in social distance increases giving, (ii) giving to a stranger and to a friend is positively correlated, and (iii) more altruistic dictators increase their giving less under non-anonymity than less altruistic dictators. However, friends are not alike in their altruistic preferences, suggesting that an individual's intrinsic preferences may not necessarily be shaped by his (or her) peers. Instead, reciprocal motives seem important, indicating that social relationships may be valued differently when individuals are financially dependent on them. (author's abstract)

International audience ; This study investigates the behavioral economic underpinnings of current policy approaches to integrate environmental objectives into the Common Agricultural Policy. We conduct an economic lab-in-the-field experiment with farmers in Germany. We analyze the impact of the following policy design features on farmers' decisions to adopt sustainable agricultural practices: (i) framing of the policy: whether farmers perceive themselves as being part of the problem or the solution, (ii) degree of control: mandatory vs. voluntary policy (iii) framing of incentives as either losses or gains. All policy designs tested result in a significant increase in hectares conserved compared to a baseline scenario without policy. Also behavioral factors do significantly affect farmers' behavior at the individual level. Only framing is found to significantly affect policy effectiveness.

International audience ; This study investigates the behavioral economic underpinnings of current policy approaches to integrate environmental objectives into the Common Agricultural Policy. We conduct an economic lab-in-the-field experiment with farmers in Germany. We analyze the impact of the following policy design features on farmers' decisions to adopt sustainable agricultural practices: (i) framing of the policy: whether farmers perceive themselves as being part of the problem or the solution, (ii) degree of control: mandatory vs. voluntary policy (iii) framing of incentives as either losses or gains. All policy designs tested result in a significant increase in hectares conserved compared to a baseline scenario without policy. Also behavioral factors do significantly affect farmers' behavior at the individual level. Only framing is found to significantly affect policy effectiveness.

In emerging economies, pro-social policy outcomes may be prevented by bureaucratic inefficiency, capture by elected or non-elected office holders, or by other hurdles. For local citizens, uncertainty about the true cause of such failures often prevails. We study the pro-sociality of politicians' decision-making in a modified dictator game with real politician participants in rural India. In our game, a recipient citizen does not know whether dictator politician capture or bad luck is to blame when receiving zero. Using a 2 x 2 design, we investigate how the combination of two non-monetary instruments affect politician behaviour in this hard to govern environment. The first instrument, a (non-binding) promise, is a commitment device; the second introduces a minimal relational lever between the politician and the recipient. We find that politician-dictator giving becomes dramatically more pro-social, from zero to 50:50-giving, when these two instruments are combined. Our results provide new insights about the scope for norm-based, lowcost mechanisms to tackle governance-related asymmetric information challenges in developing country settings.

Communities often rely on sanctioning to induce public goods contributions. Past studies focus on how external agencies or peer sanctioning induce cooperation. In this article, we focus instead on the role played by centralized authorities, internal to the community. Combining "lab‐in‐the‐field" experiments with observational data on 1,541 Ugandan farmers from 50 communities, we demonstrate the positive effect of internal centralized sanctioning authorities on cooperative behavior. We also show that the size of this effect depends on the political process by which authority is granted: subjects electing leaders contribute more to public goods than subjects who were assigned leaders through a lottery. To test the ecological validity of our findings, we relate farmers' behavior in the experiment to their level of cooperation in their community organization. We show that deference to authority in the controlled setting predicts cooperative behavior in the farmers' natural environment, in which they face a similar social dilemma.

Communities often rely on sanctioning to induce public goods contributions. Past studies focus on how external agencies or peer sanctioning induce cooperation. In this article, we focus instead on the role played by centralized authorities, internal to the community. Combining "lab-in-the-field" experiments with observational data on 1,541 Ugandan farmers from 50 communities, we demonstrate the positive effect of internal centralized sanctioning authorities on cooperative behavior. We also show that the size of this effect depends on the political process by which authority is granted: subjects electing leaders contribute more to public goods than subjects who were assigned leaders through a lottery. To test the ecological validity of our findings, we relate farmers' behavior in the experiment to their level of cooperation in their community organization. We show that deference to authority in the controlled setting predicts cooperative behavior in the farmers' natural environment, in which they face a similar social dilemma.