Social norms characterize collective and acceptable group conducts in human society. Furthermore, some social norms emerge from interactions of agents or humans. To achieve agent autonomy and make norm satisfaction explainable, we include emotions into the normative reasoning process, which evaluate whether to comply or violate a norm. Specifically, before selecting an action to execute, an agent observes the environment and infer the state and consequences with its internal states after norm satisfaction or violation of a social norm. Both norm satisfaction and violation provoke further emotions, and the subsequent emotions affect norm enforcement. This paper investigates how modeling emotions affect the emergence and robustness of social norms via social simulation experiments. We find that an ability in agents to consider emotional responses to the outcomes of norm satisfaction and violation (1) promote norm compliance; and (2) improve societal welfare.

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By regulating agent interactions, norms facilitate coordination in multiagent systems. We investigate challenges and opportunities in the emergence of norms of prosociality, such as vaccination and mask wearing. Little research on norm emergence has incorporated social preferences, which determines how agents behave when others are involved. We evaluate the influence of preference distributions in a society on the emergence of prosocial norms. We adopt the Social Value Orientation (SVO) framework, which places value preferences along the dimensions of self and other. SVO brings forth the aspects of values most relevant to prosociality. Therefore, it provides an effective basis to structure our evaluation. We find that including SVO in agents enables (1) better social experience; and (2) robust norm emergence.