The definition of family has changed throughout time this is not random what is one influencing factor

The definition of family has been influenced by societal norms and values. Norms of various societies differ with some societies defining family from the extended family point of view and other from the nuclear family point of view. This depends on whether a society is collectivist or individualistic

he risk-return relationship. generally, the higher the potential return of an investment, the higher the risk. there is no guarantee that you will actually get a higher return by accepting more risk. diversification enables you to reduce the risk of your portfolio without sacrificing potential returns.

explanation:

social contract theory, nearly as old as philosophy itself, is the view that persons' moral and/or political obligations are dependent upon a contract or agreement among them to form the society in which they live