Sociology is the scientific study of human social behavior and its origins, development, organizations, and institutions.[1] It is a social science that uses various methods of empirical investigation[2] and critical analysis[3] to develop a body of knowledge about human social actions, social structure and functions. A goal for many sociologists is to conduct research which may be applied directly to social policy and welfare, while others focus primarily on refining the theoretical understanding of social processes. Subject matter ranges from the micro level of individual agency and interaction to the macro level of systems and the social structure.[4]

The traditional focuses of sociology include social stratification, social class, social mobility, religion, secularization, law, sexuality and deviance. As all spheres of human activity are affected by the interplay between social structure and individual agency, sociology has gradually expanded its focus to further subjects, such as health, medical, military and penal institutions, the Internet, education, and the role of social activity in the development of scientific knowledge.

The range of social scientific methods has also expanded. Social researchers draw upon a variety of qualitative and quantitative techniques. The linguistic and cultural turns of the mid-twentieth century led to increasingly interpretative, hermeneutic, and philosophic approaches to the analysis of society. Conversely, recent decades have seen the rise of new analytically, mathematically and computationally rigorous techniques, such as agent-based modelling and social network analysis.[5][6]
A major change that has occurred in the Western family is an increased incidence in divorce. Whereas in the past, divorce was a relatively rare occurrence, in recent times it has become quite commonplace. This change is borne out clearly in census figures. For example thirty years ago in Australia, only one marriage in ten ended in divorce; nowadays the figure is more than one in three (Australian Bureau of Statistics, 1996: p.45). A consequence of this change has been a substantial increase in the number of single parent families and the attendant problems that this brings (Kilmartin, 1997).
An important issue for sociologists, and indeed for all of society, is why these changes in marital patterns have occurred. In this essay I will seek to critically examine a number of sociological explanations for the 'divorce phenomenon' and also consider the social policy implications that each explanation carries with it. It will be argued that the best explanations are to be found within a broad socio-economic framework.
One type of explanation for rising divorce has focused on changes in laws relating to marriage. For example, Bilton, Bonnett and Jones (1987) argue that increased rates of divorce do not necessarily indicate that families are now more unstable. It is possible, they claim, that there has always been a degree of marital instability. They suggest that changes in the law have been significant, because they have provided unhappily married couples with 'access to a legal solution to pre-existent marital problems' (p.301). Bilton et al. therefore believe that changes in divorce rates can be best explained in terms of changes in the legal system. The problem with this type of explanation however, is that it does not consider why these laws have changed in the first place. It could be argued that reforms to family law, as well as the increased rate of divorce that has accompanied them, are the product of more fundamental changes in society.
Another type of explanation is one that focuses precisely on these broad societal changes. For example, Nicky Hart (cited in Haralambos, 1995) argues that increases in divorce and marital breakdown are the result of economic changes that have affected the family. One example of these changes is the raised material aspirations of families, which Hart suggests has