A consensus perspective that sees society as based on value consensus - a set of shared norms and values into which society socialises its members, allowing them to cooperate harmoniously to meet society's needs and achieve shared goals
Murdock accepts that other institutions could perform these functions, but argues the nuclear family is universal as it is the best way to meet these needs
Marxist and feminist sociologists argue it neglects conflict and exploitation, with the family serving the needs of men and capitalism rather than all members
The functions and structure of the family depend on the type of society it is found in - the nuclear family fits the needs of modern industrial society, while the extended family fits traditional pre-industrial society