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In decision theory and general systems theory, a mindset is a set of assumptions, methods, or notations held by one or more people or groups of people that is so established that it creates a powerful incentive within these people or groups to continue to adopt or accept prior behaviors, choices, or tools. This phenomenon is also sometimes described as mental inertia, "groupthink", or a "paradigm", and it is often difficult to counteract its effects upon analysis and decision making processes.
On the positive side a mindset can also be seen as incident of a person's Weltanschauung or philosophy of life. For example there has been quite some interest in the typical mindset of an entrepreneur.
Mindsets in politics 
A well-known example is the "Cold War mindset" prevalent in both the U.S. and USSR, which included absolute trust in two-player game theory, in the integrity of command chain, in control of nuclear materials, and in the mutual assured destruction of both in the case of war. Although most consider that this mindset usefully served to prevent an attack by either country, the assumptions underlying deterrence theory have made assessments of the efficacy of the Cold War mindset a matter of some controversy.
Most theorists consider that the key responsibility of an embedded power group is to challenge the assumptions that comprise the group's own mindset. According to these commentators, power groups that fail to review or revise their mindsets with sufficient regularity cannot hold power indefinitely, as a single mindset is unlikely to possess the flexibility and adaptability needed to address all future events. For example, the variations in mindset between Democratic Party and Republican Party Presidents in the U.S. may have made that country more able to challenge assumptions than the Kremlin with its more static bureaucracy.
Modern military theory attempts to challenge entrenched mindsets in dealing with asymmetric warfare, terrorism, and the proliferation of weapons of mass destruction. In combination, these threats represent "a revolution in military affairs" and require very rapid adaptation to new threats and circumstances. In this context, the cost of not implementing adaptive mindsets cannot be afforded.
Collective mindsets 
Naturally, the question regarding the embodiment of a collective mindset comes to mind. Erikson's (1974) analysis of group-identities and what he calls a life-plan seems relevant here. He recounts the example of American Indians, who were meant to undergo a reeducation process meant to imbue a modern "life-plan" that aimed for a house and a richness expressed by a filled bank account. Erikson writes that the Indians' collective historic identity as buffalo hunters was oriented around such fundamentally different reasons/goals that even communication about the divergent "life plans" was itself difficult.
There is a double relation between the institution embodying for example an entrepreneurial mindset and its entrepreneurial performance. Firstly, an institution with an entrepreneurial philosophy will set entrepreneurial goals and strategies as a whole, but maybe even more importantly, it will foster an entrepreneurial milieu, allowing each entity to pursue emergent opportunities. In short, philosophical stance codified in the mind, hence as mindset, lead to a climate that in turn causes values that lead to practice.
Collective mindsets in this sense are described in such works as Hutchin's "Cognition in the wild" (1995), who analyzes a whole team of naval navigators as the cognitive unit or as computational system, or Senges' Knowledge entrepreneurship in universities (2007). There are also parallels to the emerging field of "collective intelligence" (e.g. (Zara, 2004)) and exploiting the "Wisdom of the crowds" (Surowiecki, 2005) of stakeholders. Zara notes that since collective reflection is more explicit, discursive, and conversational, it therefore needs a good ¿gestell?—especially when it comes to information and communication technology.
Fixed mindset and growth mindset 
According to Carol Dweck, individuals can be placed on a continuum according to their implicit views of where ability comes from. Some believe their success is based on innate ability; these are said to have a "fixed" theory of intelligence (fixed mindset). Others, who believe their success is based on having opposite mind set, which involves hard work,learning, training and doggedness are said to have a "growth" or an "incremental" theory of intelligence (growth mindset). Individuals may not necessarily be aware of their own mindset, but their mindset can still be discerned based on their behavior. It is especially evident in their reaction to failure. Fixed-mindset individuals dread failure because it is a negative statement on their basic abilities, while growth mindset individuals don't mind or fear failure as much because they realize their performance can be improved and learning comes from failure. These two mindsets play an important role in all aspects of a person's life. Dweck argues that the growth mindset will allow a person to live a less stressful and more successful life. Dweck's definition of fixed and growth mindsets from a 2012 interview:
"In a fixed mindset students believe their basic abilities, their intelligence, their talents, are just fixed traits. They have a certain amount and that's that, and then their goal becomes to look smart all the time and never look dumb. In a growth mindset students understand that their talents and abilities can be developed through effort, good teaching and persistence. They don't necessarily think everyone's the same or anyone can be Einstein, but they believe everyone can get smarter if they work at it."
According to Dweck, individuals with a "growth" theory are more likely to continue working hard despite setbacks. Individuals' theories of intelligence can be affected by subtle environmental cues. For example, children given praise such as "good job, you're very smart" are much more likely to develop a fixed mindset, whereas if given compliments like "good job, you worked very hard" they are likely to develop a growth mindset.
- Erikson, E.H. (1974). Identitaet und Lebenszyklus: Surkamp
- Hutchins, E. (1995). Cognition in the wild. Cambridge, Mass.; London: MIT Press.
- Senges, M.(2007). Knowledge entrepreneurship in universities: Practice and strategy in the case of internet based innovation appropriation
- Surowiecki, J. (2005). The wisdom of crowds: why the many are smarter than the few. London: Abacus.
- Zara, O. (2004). Managing collective intelligence: Towards a new corporate governance: www.axiopole.com. http://www.axiopole.com/pdf/Managing_collective_intelligence.pdf
- Maj. Sonise Lumbaca (2012). AWG program reinforces adaptive mindsets, builds adaptive Army leaders.
See also 
- Cognitive bias
- Confirmation bias
- Infrastructure bias
- Meme and Memetics
- Einstellung effect
- Entrepreneurial mindset
- Philosophy of Life
- Set (psychology)
- Victim mentality
- "Stanford University’s Carol Dweck on the Growth Mindset and Education". OneDublin.org. 2012-06-19.