A theory that accounts for structural change through biological adaption to the environment. The theory was developed to account for diversity. All societies have structures and patterns that favor one roup over another. Therefore all societies have internal conflict between groups - those who benefit from the system and those who maintain it. Change is seen as positive and something that should be encouraged to change and improve the relationships between groups.
Workers create value and therefor are the most important.
In many cases ethnic differences determine who are the owners and who are the workers. Espouses change but see that this change must be revolutionary and violent because those in power will not willing give it up. Supports change but many ways of change. A derivation from Weberian approaches to understanding society. Focuses on the creation of meaning and identification of groups particularly looks at the creation and maintance of group symbols, stereotyping and identity.