Iron cage, a sociological concept introduced by Max Weber, refers to the increased rationalization inherent in social life, particularly in Western capitalist societies. The "iron cage" thus traps individuals in systems based purely on teleological efficiency, rational calculation and control. Weber also described the bureaucratization of social order as "the polar night of icy darkness".
The original German term is stahlhartes Gehäuse; this was translated into "iron cage", an expression made familiar to English language speakers by Talcott Parsons in his 1958 translation of Weber's The Protestant Ethic and the Spirit of Capitalism. This translation has recently been questioned by certain sociologists and interpreted instead as the "shell as hard as steel".
|“||In Baxter’s view the care for external goods should only lie on the shoulders of the 'saint like a light cloak, which can be thrown aside at any moment.' But fate decreed that the cloak should become an iron cage."||”|
Weber became concerned with social actions and the subjective meaning that humans attach to their actions and interaction within specific social contexts. He also believed in idealism, which is the belief that we only know things because of the meanings that we apply to them. This led to his interest in power and authority in terms of bureaucracy and rationalization.
Rationalization and bureaucracy 
Weber states, “the course of development involves… the bringing in of calculation into the traditional brotherhood, displacing the old religious relationship.”
Modern society was becoming characterized by its shift in the motivation of individual behaviors. Social actions were becoming based on efficiency instead of the old types of social actions, which were based on lineage or kinship. Behavior had become dominated by goal-oriented rationality and less by tradition and values. According to Weber, the shift from the old form of mobility in terms of kinship to a new form in terms of a strict set of rules was a direct result of growth in bureaucracy and capitalism.
Effects of bureaucracies 
Positive contributions 
Bureaucracies were distinct from the former feudal system where people were promoted through favoritism and bribes because now there was a set of rules that are clearly defined; there was promotion through seniority and disciplinary control. Weber believes that this influenced modern society and how we operate today, especially politically.
Weber’s characteristics of an ideal bureaucracy:
- Hierarchy of authority
- Written rules of conduct
- Promotion based on achievement
- Specialized division of labor
Weber believed that bureaucracies are goal-oriented organizations that are based on rational principles that are used to efficiently reach their goals. However, there are constraints within this bureaucratic system.
Negative effects of bureaucracies 
Bureaucracies concentrate large amounts of power in a small number of people and are generally unregulated. Weber believed that those who control these organizations control the quality of our lives as well. Bureaucracies tend to generate oligarchy; which is where a few officials are the political and economic power. Because bureaucracy is a form of organization superior to all others, further bureaucratization and rationalization may be an inescapable fate.
Iron cage of bureaucracy 
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Because of these aforementioned reasons, there will be an evolution of an iron cage, which will be a technically ordered, rigid, dehumanized society. The iron cage is the one set of rules and laws that we are all subjected and must adhere to. Bureaucracy puts us in an iron cage, which limits individual human freedom and potential instead of a “technological utopia” that should set us free. It is the way of the institution, where we do not have a choice anymore. Once capitalism came about, it was like a machine that you were being pulled into without an alternative option; currently, whether we agree or disagree, if you want to survive you need to have a job and you need to make money.
Laws of bureaucracies:
- The official is subject to authority only with respect to their official obligation
- Organized in a clearly defined hierarchy of offices
- Each office has a clearly defined sphere of competence
- The official has a free contractual relationship; free selection
- Officials are selected through technical qualification
- The official is paid by fixed salaries
- The office is the primary occupation of the official
- Promotion is based on an achievement which is granted by the judgment of superiors
- The official works entirely separated from ownership of the means of administration
- The official is subject to strict and systematic discipline within the office
Costs of bureaucracies 
“Rational calculation . . . reduces every worker to a cog in this bureaucratic machine and, seeing himself in this light, he will merely ask how to transform himself… to a bigger cog… The passion for bureaucratization at this meeting drives us to despair.”
- Loss of individuality; labor is now being sold to someone who is in control, instead of individuals being artisans and craftsmen and benefiting from their own labor.
- Loss of autonomy; others are dictating what an individual’s services are worth.
- Individuals develop an obsession with moving on to bigger and better positions, but someone else will always be determining the value of our achievements.
- Lack of individual freedom; individuals can no longer engage in a society unless they belong to a large scale organization  where they are given specific tasks in return for giving up their personal desires to conform to the bureaucracy’s goals and are now following legal authority.
- Specialization; with specialization, society becomes more interdependent and has a less common purpose. There is a loss in the sense of community because the purpose of bureaucracies is to get the job done efficiently.
Bureaucratic hierarchies can control resources in pursuit of their own personal interests, which impacts society’s lives greatly and society has no control over this. It also affects society’s political order and governments because bureaucracies were built to regulate these organizations, but corruption remains an issue. The goal of the bureaucracy has a single-minded pursuit that can ruin social order; what might be good for the organization might not be good for the society as a whole, which can later harm the bureaucracy’s future. Formal rationalization in bureaucracy has its problems as well. There are issues of control, depersonalization and increasing domination. Once the bureaucracy is created, the control is indestructible. There is only one set of rules and procedures, which reduces everyone to the same level. Depersonalization occurs because individual situations are not accounted for. Most importantly, the bureaucracies will become more dominating over time unless they are stopped. In an advanced industrial-bureaucratic society, everything becomes part of the expanding machine, even people. 
While bureaucracies are supposed to be based on rationalization, they act in the exact opposite manner. Political bureaucracies are established so that they protect our civil liberties, but they violate them with their imposing rules. Development and agricultural bureaucracies are set so that they help farmers, but put them out of business due to market competition that the bureaucracies contribute to. Service bureaucracies like health care are set to help the sick and elderly, but then they deny care based on specific criteria.
Debates regarding bureaucracies 
Weber argues that bureaucracies have dominated modern society’s social structure; but we need these bureaucracies to help regulate our complex society. Bureaucracies may have desirable intentions to some, but they tend to undermine human freedom and democracy in the long run.
“Rationalization destroyed the authority of magical powers, but it also brought into being the machine-like regulation of bureaucracy, which ultimately challenges all systems of belief.”
It is important note that according to Weber, society sets up these bureaucratic systems, and it is up to society to change them. Weber argues that it is very difficult to change or break these bureaucracies, but if they are indeed socially constructed, then society should be able to intervene and shift the system.
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