Social institutions are configurations of shared behavior patterns that satisfy basic group needs. They include social roles and social relations. Key characteristics of institutions are that they are purposive, relatively permanent, structured, and value-laden. Major institutions involve widespread participation and are essential to society, while subsidiary institutions operate within major institutions. Economic institutions organize a society's production, distribution, and consumption of goods and services. Political institutions create and enforce laws, make policy, and represent citizens by distributing power and authority to manage society. They include branches of government and functions like regulating relationships, providing welfare, and resolving conflicts.