Summary: DESCRIPTORS: Identity, Exclusion, Organizational social Social Change, Social Stratification. The thesis "Identities individual and social exclusion" analyzes the dynamic connection between social stratification and the identification of the same in a social system. The theoretical framework of this thesis is characterized by considering that the process of configuring power relations has three phases: objective, intersubjective and social action. In this process, the association between phases is dynamic. In the second, the identification with the same substrate is produced on the structural and cultural life of society and this affects power relationships. The discovery phase of this helps to explain how certain cultural attributes classification involving the structuring of power. This thesis examines such as changing the structural substrate-selective processes that determine the degree of social integration -evoluciona with a similar pattern to that observed individual identities. The problem we face the crisis ambit of the basic social identities of industrial societies. This thesis demonstrates how a systemic process of increasing the exclusion on the basis of the intensified use of certain social identities by basic social organizations to select the population produces fortifications such social identities in the face of other individual identities in general, and that therefore, this process is in the structural origin of the crisis expressive Europe. The theoretical perspectives predominant (approaches on the rise of subjectivity or autonomy of culture) assume substantive changes in the nature of the relationship between the size synthetic hardly verifiable or falsables. The purpose of this thesis has been to offer a response that is not required to pay for those kinds of changes. This thesis is based on the axiom that the dimensions do not change their nature synthetic only content. The hypothesis is that trends change weight central goal of social identities in the process of selective stratification are influencing trends central weight subjective identities ociales in identifying with peers. The data sources used were: Social Trends Surveys (STDs) of the Study Group on Social Trends (GETS) that occurred between
1985 and the year 2004, the Active Population Surveys conducted by the National Institute of Statistics and other sources sobrada validity. The results imply that, from 1985 until the year 2004, there has been a significant change in the hierarchy of group identification in Spain. In which there has been a cycle of crisis expressive that has been replaced by a new cycle of dominance of the generational identity as the most relevant. This has occurred in a context that has been taking shape a new way of stratification on the basis of three basic selectivity: the age, sex and nationality. At the end of the thesis are discussed some of the results obtained. Four: the question of citizenship, lifestyles, gender, the gap between the weight goal of sex and age. Taking into account these issues for discussion, the conclusions that have been reached are: Identification with the same tends to vary according to central trends, forming large cycles. The weight of each objective social identity in the process selective institutionalized varies over time as central tendencies, forming large cycles: the weight of each objective social identity in the process selective institutionalized varies over time as central tendencies, and the weight of subjective social identity tends to increase when their weight goal tends to be larger in shaping the system of social stratification.