Niklas Luhmann was a German sociologist, philosopher of social science, and a prominent thinker in systems theory.
Systems theory is the transdisciplinary study of systems, i.e. cohesive groups of interrelated, interdependent components that can be natural or artificial. Every system has causal boundaries, is influenced by its context, defined by its structure, function and role, and expressed through its relations with other systems. A system is "more than the sum of its parts" when it expresses synergy or emergent behavior.
Creative destruction is a concept in economics that describes a process in which new innovations replace and make obsolete older innovations.
The term autopoiesis refers to a system capable of producing and maintaining itself by creating its own parts. The term was introduced in the 1972 publication Autopoiesis and Cognition: The Realization of the Living by Chilean biologists Humberto Maturana and Francisco Varela to define the self-maintaining chemistry of living cells.
Environmental sociology is the study of interactions between societies and their natural environment. The field emphasizes the social factors that influence environmental resource management and cause environmental issues, the processes by which these environmental problems are socially constructed and define as social issues, and societal responses to these problems.
Accumulation by dispossession is a concept presented by the Marxist geographer David Harvey. It defines neoliberal capitalist policies that result in a centralization of wealth and power in the hands of a few by dispossessing the public and private entities of their wealth or land. Such policies are visible in many western nations from the 1970s and to the present day. Harvey argues these policies are guided mainly by four practices: privatization, financialization, management and manipulation of crises, and state redistributions.
In sociology, social complexity is a conceptual framework used in the analysis of society. In the sciences, contemporary definitions of complexity are found in systems theory, wherein the phenomenon being studied has many parts and many possible arrangements of the parts; simultaneously, what is complex and what is simple are relative and change in time.
David W. Harvey is a British-American academic best known for Marxist analyses that focus on urban geography as well as the economy more broadly. He is a Distinguished Professor of anthropology and geography at the Graduate Center of the City University of New York (CUNY). Harvey has authored many books and essays that have been prominent in the development of modern geography as a discipline. He is a proponent of the idea of the right to the city.
Neofunctionalism is the perspective that all integration is the result of past integration. The term may also be used to literally describe a social theory that is "post" traditional structural functionalism. Whereas theorists such as Jeffrey C. Alexander openly appropriated the term, others, such as the post-structuralist philosopher Michel Foucault, have been categorized as contemporary functionalists by their critics.
In Marxian economics and preceding theories, the problem of primitive accumulation of capital concerns the origin of capital and therefore how class distinctions between possessors and non-possessors came to be.
Metabolic rift is a theory of ecological crisis tendencies under the capitalist mode of production that sociologist John Bellamy Foster ascribes to Karl Marx. Quoting Marx, Foster defines this as the "irreparable rift in the interdependent process of social metabolism". Foster argues that Marx theorized a rupture in the metabolic interaction between humanity and the rest of nature emanating from capitalist agricultural production and the growing division between town and country.
The sociology of law, legal sociology, or law and society is often described as a sub-discipline of sociology or an interdisciplinary approach within legal studies. Some see sociology of law as belonging "necessarily" to the field of sociology, but others tend to consider it a field of research caught up between the disciplines of law and sociology. Still others regard it as neither a subdiscipline of sociology nor a branch of legal studies but as a field of research on its own right within the broader social science tradition. Accordingly, it may be described without reference to mainstream sociology as "the systematic, theoretically grounded, empirical study of law as a set of social practices or as an aspect or field of social experience". It has been seen as treating law and justice as fundamental institutions of the basic structure of society mediating "between political and economic interests, between culture and the normative order of society, establishing and maintaining interdependence, and constituting themselves as sources of consensus, coercion and social control".
A system is a group of interacting or interrelated elements that act according to a set of rules to form a unified whole. A system, surrounded and influenced by its environment, is described by its boundaries, structure and purpose and is expressed in its functioning. Systems are the subjects of study of systems theory and other systems sciences.
Tom R. Burns is an American/Swedish sociologist, professor emeritus of sociology at the University of Uppsala in Sweden and founder of the Uppsala Theory Circle.
In sociology, a social system is the patterned network of relationships constituting a coherent whole that exist between individuals, groups, and institutions. It is the formal structure of role and status that can form in a small, stable group. An individual may belong to multiple social systems at once; examples of social systems include nuclear family units, communities, cities, nations, college campuses, religions, corporations, and industries. The organization and definition of groups within a social system depend on various shared properties such as location, socioeconomic status, race, religion, societal function, or other distinguishable features.
In system theory, differentiation is the increase of subsystems in a modern society to increase the complexity of that society. Each subsystem can make different connections with other subsystems, and this leads to more variation within the system in order to respond to variation in the environment.
Systems theory in anthropology is an interdisciplinary, non-representative, non-referential, and non-Cartesian approach that brings together natural and social sciences to understand society in its complexity. The basic idea of a system theory in social science is to solve the classical problem of duality; mind-body, subject-object, form-content, signifier-signified, and structure-agency. Systems theory suggests that instead of creating closed categories into binaries (subject-object), the system should stay open so as to allow free flow of process and interactions. In this way the binaries are dissolved.
The internal contradictions of capital accumulation is an essential concept of crisis theory, which is associated with Marxist economic theory. While the same phenomenon is described in neoclassical economic theory, in that literature it is referred to as systemic risk.
Crisis theory, concerning the causes and consequences of the tendency for the rate of profit to fall in a capitalist system, is associated with Marxian critique of political economy, and was further popularised through Marxist economics.
Racial capitalism is a concept reframing the history of capitalism as grounded in the extraction of social and economic value from people of marginalized racial identities, typically from black people. It was described by Cedric J. Robinson in his book Black Marxism: The Making of the Black Radical Tradition, published in 1983, which, in contrast to both his predecessors and successors, theorized that all capitalism is inherently racial capitalism, and racialism is present in all layers of capitalism's socioeconomic stratification. Jodi Melamed has summarized the concept, explaining that capitalism "can only accumulate by producing and moving through relations of severe inequality among human groups", and therefore, for capitalism to survive, it must exploit and prey upon the "unequal differentiation of human value."
