






What do peaceful societies have in common?
When the team systematically compared a sample of peace systems with a randomly selected comparison group, they discovered that peace systems tend to share certain commonalities:
Overarching common identities, such as shared national or regional identities (like Africans, Latin Americans, or Christians) that emphasize commonalities between different ethnic groups.
Greater positive interconnectedness and independence in the realms of economics, ecology, and security. In other words, they have public spaces, institutions, and activities that bring members of different groups together and help them realize that their fates are closely linked.
Stronger non-warring norms, values, rituals, and symbols, like commemorations of successful peacemakers and monuments that celebrate the prevention of war. In fact, using a machine learning technique, they discovered that the single most important contributor to peace is non-warring norms, followed in decreasing importance by non-warring rituals, non-warring values, mutual security dependencies, superordinate institutions, and economic interdependence. This suggests that developing norms that are supportive of positive reciprocal social relationships may be more important for peace than previously assumed.