Joseph Tainter
Encyclopedia
Joseph A. Tainter is a U.S. anthropologist
Anthropology
Anthropology is the study of humanity. It has origins in the humanities, the natural sciences, and the social sciences. The term "anthropology" is from the Greek anthrōpos , "man", understood to mean mankind or humanity, and -logia , "discourse" or "study", and was first used in 1501 by German...

 and historian
Historian
A historian is a person who studies and writes about the past and is regarded as an authority on it. Historians are concerned with the continuous, methodical narrative and research of past events as relating to the human race; as well as the study of all history in time. If the individual is...

.

Tainter studied anthropology at the University of California
University of California
The University of California is a public university system in the U.S. state of California. Under the California Master Plan for Higher Education, the University of California is a part of the state's three-tier public higher education system, which also includes the California State University...

 and Northwestern University
Northwestern University
Northwestern University is a private research university in Evanston and Chicago, Illinois, USA. Northwestern has eleven undergraduate, graduate, and professional schools offering 124 undergraduate degrees and 145 graduate and professional degrees....

, where he received his Ph.D. in 1975. He is currently a professor in the Department of Environment and Society at Utah State University
Utah State University
Utah State University is a public university located in Logan, Utah. It is a land-grant and space-grant institution and is accredited by the Northwest Commission on Colleges and Universities....

. His previous positions include Project Leader of Cultural Heritage Research, Rocky Mountain Forest and Range Experiment Station, Albuquerque, New Mexico
Albuquerque, New Mexico
Albuquerque is the largest city in the state of New Mexico, United States. It is the county seat of Bernalillo County and is situated in the central part of the state, straddling the Rio Grande. The city population was 545,852 as of the 2010 Census and ranks as the 32nd-largest city in the U.S. As...

 and professor of anthropology at the University of New Mexico
University of New Mexico
The University of New Mexico at Albuquerque is a public research university located in Albuquerque, New Mexico, in the United States. It is the state's flagship research institution...

. Tainter is the author or editor of many articles and monographs. His best-known work is The Collapse of Complex Societies (1988), which examines the collapse of Maya
Maya civilization
The Maya is a Mesoamerican civilization, noted for the only known fully developed written language of the pre-Columbian Americas, as well as for its art, architecture, and mathematical and astronomical systems. Initially established during the Pre-Classic period The Maya is a Mesoamerican...

 and Chacoan
Ancient Pueblo Peoples
Ancient Pueblo People or Ancestral Pueblo peoples were an ancient Native American culture centered on the present-day Four Corners area of the United States, comprising southern Utah, northern Arizona, northwest New Mexico, and southern Colorado...

 civilizations, and the Roman Empire
Roman Empire
The Roman Empire was the post-Republican period of the ancient Roman civilization, characterised by an autocratic form of government and large territorial holdings in Europe and around the Mediterranean....

, in terms of network theory
Network theory
Network theory is an area of computer science and network science and part of graph theory. It has application in many disciplines including statistical physics, particle physics, computer science, biology, economics, operations research, and sociology...

, energy economics
Energy economics
Energy economics is a broad scientific subject area which includes topics related to supply and use of energy in societies. Due to diversity of issues and methods applied and shared with a number of academic disciplines, energy economics does not present itself as a self contained academic...

 and complexity theory
Complex systems
Complex systems present problems in mathematical modelling.The equations from which complex system models are developed generally derive from statistical physics, information theory and non-linear dynamics, and represent organized but unpredictable behaviors of systems of nature that are considered...

. Tainter argues that sustainability or collapse of societies follow from the success or failure of problem-solving institutions and that societies collapse when their investments in social complexity and their "energy subsidies" reach a point of diminishing marginal returns
Diminishing returns
In economics, diminishing returns is the decrease in the marginal output of a production process as the amount of a single factor of production is increased, while the amounts of all other factors of production stay constant.The law of diminishing returns In economics, diminishing returns (also...

. He recognizes collapse when a society rapidly sheds a significant portion of its complexity.

Social complexity

According to Tainter's Collapse of Complex Societies, societies become more complex as they try to solve problems. Social complexity can be recognized by numerous differentiated and specialised social
Social
The term social refers to a characteristic of living organisms...

 and economic roles and many mechanisms through which they are coordinated, and by reliance on symbol
Symbol
A symbol is something which represents an idea, a physical entity or a process but is distinct from it. The purpose of a symbol is to communicate meaning. For example, a red octagon may be a symbol for "STOP". On a map, a picture of a tent might represent a campsite. Numerals are symbols for...

ic and abstract
Abstraction
Abstraction is a process by which higher concepts are derived from the usage and classification of literal concepts, first principles, or other methods....

 communication
Communication
Communication is the activity of conveying meaningful information. Communication requires a sender, a message, and an intended recipient, although the receiver need not be present or aware of the sender's intent to communicate at the time of communication; thus communication can occur across vast...

, and the existence of a class of information producers and analysts who are not involved in primary resource production. Such complexity requires a substantial "energy" subsidy (meaning the consumption of resources
Natural resource
Natural resources occur naturally within environments that exist relatively undisturbed by mankind, in a natural form. A natural resource is often characterized by amounts of biodiversity and geodiversity existent in various ecosystems....

, or other forms of wealth
Wealth
Wealth is the abundance of valuable resources or material possessions. The word wealth is derived from the old English wela, which is from an Indo-European word stem...

). When a society confronts a "problem," such as a shortage of energy
Energy
In physics, energy is an indirectly observed quantity. It is often understood as the ability a physical system has to do work on other physical systems...

, or difficulty in gaining access to it, it tends to create new layers of bureaucracy
Bureaucracy
A bureaucracy is an organization of non-elected officials of a governmental or organization who implement the rules, laws, and functions of their institution, and are occasionally characterized by officialism and red tape.-Weberian bureaucracy:...

, infrastructure
Infrastructure
Infrastructure is basic physical and organizational structures needed for the operation of a society or enterprise, or the services and facilities necessary for an economy to function...

, or social class
Social class
Social classes are economic or cultural arrangements of groups in society. Class is an essential object of analysis for sociologists, political scientists, economists, anthropologists and social historians. In the social sciences, social class is often discussed in terms of 'social stratification'...

 to address the challenge. Tainter, who first (ch. 1) identifies seventeen examples of rapid collapse of societies, applies his model to three case studies: The Western Roman Empire
Western Roman Empire
The Western Roman Empire was the western half of the Roman Empire after its division by Diocletian in 285; the other half of the Roman Empire was the Eastern Roman Empire, commonly referred to today as the Byzantine Empire....

, the Maya civilization
Maya civilization
The Maya is a Mesoamerican civilization, noted for the only known fully developed written language of the pre-Columbian Americas, as well as for its art, architecture, and mathematical and astronomical systems. Initially established during the Pre-Classic period The Maya is a Mesoamerican...

, and the Chaco culture
Chaco Culture National Historical Park
Chaco Culture National Historical Park is a United States National Historical Park hosting the densest and most exceptional concentration of pueblos in the American Southwest. The park is located in northwestern New Mexico, between Albuquerque and Farmington, in a remote canyon cut by the Chaco Wash...

.

For example, as Roman agricultural output
Agricultural productivity
Agricultural productivity is measured as the ratio of agricultural outputs to agricultural inputs. While individual products are usually measured by weight, their varying densities make measuring overall agricultural output difficult...

 slowly declined and population increased, per-capita energy availability dropped. The Romans "solved" this problem by conquering their neighbours to appropriate their energy surpluses (in concrete forms, as metals, grain, slaves, etc.). However, as the Empire
Roman Empire
The Roman Empire was the post-Republican period of the ancient Roman civilization, characterised by an autocratic form of government and large territorial holdings in Europe and around the Mediterranean....

 grew, the cost of maintaining communications, garrisons, civil government, etc. grew with it. Eventually, this cost grew so great that any new challenges such as invasions and crop failures could not be solved by the acquisition of more territory. Intense, authoritarian efforts to maintain cohesion by Domitian
Domitian
Domitian was Roman Emperor from 81 to 96. Domitian was the third and last emperor of the Flavian dynasty.Domitian's youth and early career were largely spent in the shadow of his brother Titus, who gained military renown during the First Jewish-Roman War...

 and Constantine the Great only led to an ever greater strain on the population. The empire was split into two halves, of which the western soon fragmented into smaller units. The eastern half, being wealthier, was able to survive longer, and did not collapse but instead succumbed slowly and piecemeal, because unlike the western empire it had powerful neighbors able to take advantage of its weakness.

We often assume that the collapse of the western Roman Empire
Decline of the Roman Empire
The decline of the Roman Empire refers to the gradual societal collapse of the Western Roman Empire. Many theories of causality prevail, but most concern the disintegration of political, economic, military, and other social institutions, in tandem with foreign invasions and usurpers from within the...

 was a catastrophe for everyone involved. Tainter points out that it can be seen as a very rational preference of individuals at the time, many of whom were actually better off. Archeological evidence from human bones indicates that average nutrition actually improved after the collapse in many parts of the former Roman Empire. Average individuals may have benefited because they no longer had to invest in the burdensome complexity of empire. Tainter notes that in the west, local populations in many cases greeted the barbarians as liberators.

Diminishing returns

Tainter begins by categorizing and examining the often inconsistent explanations that have been offered for collapse in the literature. In Tainter's view, while invasions, crop failures
Famine
A famine is a widespread scarcity of food, caused by several factors including crop failure, overpopulation, or government policies. This phenomenon is usually accompanied or followed by regional malnutrition, starvation, epidemic, and increased mortality. Every continent in the world has...

, disease
Disease
A disease is an abnormal condition affecting the body of an organism. It is often construed to be a medical condition associated with specific symptoms and signs. It may be caused by external factors, such as infectious disease, or it may be caused by internal dysfunctions, such as autoimmune...

 or environmental degradation
Environmental degradation
Environmental degradation is the deterioration of the environment through depletion of resources such as air, water and soil; the destruction of ecosystems and the extinction of wildlife...

 may be the apparent causes of societal collapse, the ultimate cause is an economic one, inherent in the structure of society rather than in external shocks which may batter them: diminishing returns on investments in social complexity
Social complexity
In the discipline of sociology, social complexity is a theoretical construct useful in the analysis of society.- Overview :Contemporary definitions of complexity in the sciences are found in relation to systems theory, where a phenomenon under study has many parts and many possible arrangements of...

. For contrast, Jared Diamond
Jared Diamond
Jared Mason Diamond is an American scientist and author whose work draws from a variety of fields. He is currently Professor of Geography and Physiology at UCLA...

's 2005 book, Collapse: How Societies Choose to Fail or Succeed
Collapse (book)
Collapse: How Societies Choose to Fail or Succeed is a 2005 book by Jared M. Diamond, professor of geography and physiology at University of California, Los Angeles...

, focuses on environmental mismanagement as a cause of collapse. Finally, Tainter musters modern statistics to show that marginal returns on investments in energy, education and technological innovation are diminishing today. The globalised modern world is subject to many of the same stresses that brought older societies to ruin.

However, Tainter is not entirely apocalyptic: "When some new input to an economic system is brought on line, whether a technical innovation or an energy subsidy, it will often have the potential at least temporarily to raise marginal productivity" (p. 124). Thus, barring continual conquest of your neighbors (which is always subject to diminishing returns), innovation that increases productivity is – in the long run – the only way out of the dismal science dilemma of declining marginal returns on added investments in complexity. And in his final chapters, Tainter discusses why modern societies may not be able to choose to collapse: because surrounding them are other complex societies which will in some way absorb a collapsed region or prevent a general collapse; the Mayan and Chaocan regions had no powerful complex neighbors and so could collapse for centuries or millennia, as could the Western Roman Empire - but the Eastern Roman Empire, bordered as it was by the Parthian/Sassanid Empire, did not have the option of devolving into simpler smaller entities.

His paper Complexity, Problem Solving, and Sustainable Societies
Complexity, Problem Solving, and Sustainable Societies
Complexity, Problem Solving, and Sustainable Societies is a paper on energy economics by Joseph Tainter from 1996.- Focus :It focuses on the energy cost of problem solving, and the energy-complexity relation in manmade systems...

(1996) focuses on the energy cost of problem solving, and the energy-complexity relation in manmade systems.

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