An agreement between two individuals or agents is a contract. The agreement may be influenced by social institutions as well as the preferences and values of the individuals. A social institution is a habitual pattern of
behavior that is embedded in a social system. Marriage is an example of a social institution. It is a contract between two people. The form of that contract is influenced by commonly held social values and laws of a society. Almost all societies have some form of marriage. Marriage is a social creation that provides a solution to the problem of rearing children. As a social institution, it may change over time as social values, technology, work and environment change. These institutions may vary from place to place. Money, law (or the legal system), property rights and markets are examples of economic institutions. Institutions simultaneously facilitate and constrain human activities. Technology is the knowledge about the individuals’ relationships with the natural and built environments. This knowledge can be used to alter elements in the environments to satisfy human wants. Technology involves knowledge about alternative ways of solving the problem of provisioning.