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This paper investigates experimentally how a group's structure affects its ethical behavior towards a passive outsider. We analyze one vertical and two horizontal structures (one requiring consensus, one implementing a compromise by averaging proposals). We also control for internal communication. The data support our main predictions: (1) horizontal, averaging structures are more ethical than vertical structures (where subordinates do not feel responsible) and than consensual structures (where responsibility is dynamically diffused); (2) communication makes vertical structures more ethical (subordinates with voice feel responsible); (3) with communication, vertical structures are more ethical than consensual structures (where in-group bias hurts the outsider). (JEL C92, D23, L21, M14)

Self-regulation is the private provision of public goods and private redistribution. This paper examines the scope of self-regulation motivated by altruistic moral preferences that are reciprocal and stronger the closer are citizens in a socioeconomic distance. The focus is on the role of organizations in increasing self-regulation by mitigating free-rider problems. Social label and certification organizations can expand the scope of self-regulation but not beyond that with unconditional altruism. Enforcement organizations expand the scope of self-regulation farther, and for-profit enforcement is more aggressive than nonprofit enforcement. Enforcement through social pressure imposed by NGOs also expands the scope of self-regulation. (JEL D64, H41, L51)