broken-windows-theory

Broken Windows Theory

The Broken Windows Theory suggests that visible signs of disorder in the environment can lead to an increase in crime and fear of crime. By addressing and preventing minor signs of disorder, communities can create a sense of safety and improve overall well-being.

Understanding the Broken Windows Theory

  • Origins: The Broken Windows Theory was first articulated in a 1982 article in The Atlantic Monthly by James Q. Wilson and George L. Kelling. They argued that addressing minor forms of disorder could prevent more serious crimes from occurring.
  • The Broken Window Metaphor: The theory is often illustrated through the metaphor of a broken window in a building. If a broken window is left unrepaired, it signals neglect, and soon, vandals may break more windows, leading to further deterioration of the building.
  • Focus on Disorder: The central idea is that visible signs of disorder, such as graffiti, litter, public intoxication, or vandalism, create an environment that is conducive to criminal behavior. Addressing these signs of disorder can help prevent crime.

Key Principles of the Broken Windows Theory

  • Social Norms and Conformity: The theory is rooted in the concept that individuals are influenced by their environment and social norms. When disorder is tolerated, it sends a message that nonconformity is acceptable.
  • Community Policing: The Broken Windows Theory emphasizes the importance of community policing, where law enforcement officers work closely with communities to address minor offenses and maintain public order.
  • Prevention: Preventing disorder and addressing minor offenses can prevent the escalation to more serious criminal behavior.

Real-World Applications of the Broken Windows Theory

  • New York City: The implementation of the Broken Windows Theory, particularly under Police Commissioner William Bratton in the 1990s, is often credited with reducing crime rates in New York City. The focus on addressing minor offenses contributed to a safer urban environment.
  • Community Policing Programs: Many police departments have adopted community policing strategies that align with the principles of the Broken Windows Theory. Officers engage with communities to address neighborhood concerns and prevent crime.
  • Urban Planning: Urban planners have integrated the theory’s principles into their designs to create environments that discourage disorder and promote community engagement.

Criticisms of the Broken Windows Theory

  • Causation vs. Correlation: Critics argue that the theory does not establish a causal relationship between disorder and crime but rather observes a correlation. Other factors, such as socioeconomic conditions, may also contribute to crime rates.
  • Selective Enforcement: Concerns have been raised that the enforcement of disorder-related offenses may disproportionately affect marginalized communities, leading to issues of discrimination and over-policing.
  • Focus on Symptoms: Critics suggest that the Broken Windows Theory addresses symptoms of social problems rather than their root causes, such as poverty and inequality.

Impact on Community Safety

  • Crime Prevention: Proponents argue that the Broken Windows Theory has played a role in reducing crime rates in certain areas by preventing the escalation of disorder into more serious criminal activity.
  • Community Engagement: The theory’s emphasis on community policing fosters better relationships between law enforcement and communities, leading to increased trust and cooperation.
  • Urban Revitalization: Urban planners and policymakers have used the theory to guide efforts to revitalize neighborhoods by reducing disorder and promoting community development.

Key Highlights of the Broken Windows Theory:

  • The Broken Windows Theory: This theory suggests that visible signs of disorder and neglect in a community’s environment can lead to an increase in criminal activity and fear of crime.
  • Physical Disorder: Visible signs of decay, such as broken windows, graffiti, and abandoned buildings, contribute to an environment that appears neglected and unsafe.
  • Social Disorder: When social norms and rules are disregarded, it can lead to a rise in minor rule-breaking behavior, which may escalate over time.
  • Perceived Control: People’s perception of control over their environment plays a significant role in shaping their behavior and feelings of safety.
  • Consequences of Disorder:
    • Increased Crime: Visible disorder is thought to attract criminal elements and potentially escalate to more serious crimes.
    • Fear of Crime: Communities with visible disorder experience higher levels of fear among residents due to perceived heightened crime risk.
    • Decline of Community: Persistent disorder can weaken community bonds, social cohesion, and overall community engagement.
  • Interventions to Address Disorder:
    • Environmental Improvement: Enhancing the physical environment by addressing visible signs of disorder can discourage criminal activity and foster community pride.
    • Community Policing: Law enforcement and communities working together to promptly address minor issues can prevent the progression of disorder and crime.
    • Social Programs: Implementing programs that strengthen community ties, encourage cooperation, and promote social control can help reduce disorder and its consequences.
FrameworkDescriptionWhen to Apply
Social Disorder TheorySocial Disorder Theory: Social disorder theory posits that visible signs of disorder and neglect in a community, such as graffiti, litter, and abandoned buildings, can signal a lack of social control and encourage further antisocial behavior. It suggests that addressing minor infractions and maintaining order in public spaces can prevent the escalation of crime and disorder. The broken windows theory is closely related to social disorder theory, as it emphasizes the importance of maintaining order and addressing signs of decay to prevent crime and maintain social cohesion. By addressing social disorder and promoting community engagement, organizations and authorities can create safer and more vibrant neighborhoods, improving residents’ quality of life and fostering a sense of collective responsibility for public spaces. Strategies such as community policing, neighborhood clean-up initiatives, and urban revitalization projects can help address social disorder and promote positive social norms and behavior.Preventing the escalation of crime and disorder by addressing visible signs of social disorder and neglect in public spaces, in urban planning, community development, or crime prevention contexts where organizations aim to improve public safety and community well-being, in implementing strategies or initiatives that promote community engagement and collective responsibility for public spaces, in adopting approaches or interventions that address social disorder through community policing, neighborhood clean-up efforts, or urban revitalization projects to create safer and more vibrant neighborhoods.
Community PolicingCommunity Policing: Community policing is a law enforcement strategy that emphasizes building partnerships between police departments and the communities they serve to address public safety issues collaboratively. It focuses on proactive crime prevention, problem-solving, and community engagement rather than reactive law enforcement. Community policing aligns with the broken windows theory by recognizing the importance of maintaining order and addressing low-level offenses to prevent more serious crime. By fostering trust, communication, and collaboration between law enforcement agencies and community members, community policing initiatives can create safer and more resilient communities. Strategies such as foot patrols, community meetings, and crime prevention programs can help police departments build positive relationships with residents and address the underlying causes of crime and disorder. Community policing promotes a shared responsibility for public safety and encourages community members to take an active role in crime prevention efforts, contributing to the overall effectiveness of crime reduction strategies.Building partnerships between police departments and communities to address public safety issues collaboratively, in law enforcement, crime prevention, or community engagement contexts where organizations aim to improve police-community relations and reduce crime rates, in implementing strategies or initiatives that promote proactive crime prevention and problem-solving through community policing approaches, in adopting approaches or interventions that foster trust, communication, and collaboration between law enforcement agencies and community members to address the underlying causes of crime and disorder and create safer and more resilient communities.
Broken Windows PolicingBroken Windows Policing: Broken windows policing is a law enforcement strategy based on the broken windows theory, which asserts that addressing minor offenses and visible signs of disorder can prevent more serious crime. It involves targeting low-level offenses and maintaining order in public spaces to create an atmosphere of lawfulness and deter criminal activity. Broken windows policing emphasizes the importance of proactive enforcement, community engagement, and problem-solving to address the underlying causes of crime and disorder. By focusing on disorderly behavior and quality-of-life issues, law enforcement agencies can improve neighborhood safety and residents’ perceptions of security. Strategies such as hotspot policing, problem-oriented policing, and focused deterrence initiatives can help implement broken windows policing principles and reduce crime rates in high-risk areas. Broken windows policing aims to create a sense of collective responsibility for public order and encourage community members to take pride in their neighborhoods, contributing to the overall well-being of the community.Addressing minor offenses and visible signs of disorder to prevent more serious crime and improve neighborhood safety, in law enforcement, crime prevention, or urban revitalization contexts where organizations aim to reduce crime rates and enhance public perceptions of security, in implementing strategies or initiatives that target low-level offenses and maintain order in public spaces through broken windows policing approaches, in adopting approaches or interventions that promote proactive enforcement, community engagement, and problem-solving to address the underlying causes of crime and disorder and create a sense of collective responsibility for public order and community well-being.
Environmental CriminologyEnvironmental Criminology: Environmental criminology examines how the physical and social characteristics of environments influence criminal behavior and victimization patterns. It emphasizes the role of environmental design, management, and regulation in shaping opportunities for crime and disorder. The broken windows theory aligns with environmental criminology by highlighting the impact of urban decay and disorder on crime rates and community safety. By understanding the spatial and situational factors that contribute to criminal behavior, policymakers and urban planners can design more crime-resistant environments and implement targeted interventions to address hotspots of crime and disorder. Environmental criminology promotes evidence-based approaches to crime prevention that consider the interaction between individuals, environments, and opportunities for crime. Strategies such as crime prevention through environmental design (CPTED), place-based policing, and situational crime prevention can help implement environmental criminology principles and create safer and more resilient communities.Shaping environments to reduce opportunities for crime and disorder by understanding the spatial and situational factors that influence criminal behavior, in urban planning, crime prevention, or environmental design contexts where organizations aim to create safer and more livable communities, in implementing strategies or interventions that target crime hotspots and enhance the security of public spaces through environmental criminology approaches, in adopting evidence-based approaches to crime prevention that consider the interaction between individuals, environments, and opportunities for crime and promote collaboration between policymakers, urban planners, and law enforcement agencies to address the root causes of crime and disorder.
Restorative JusticeRestorative Justice: Restorative justice is an approach to addressing harm and conflict that focuses on repairing the harm caused by crime and restoring relationships between offenders, victims, and the community. It emphasizes accountability, empathy, and healing over punishment and retribution. Restorative justice aligns with the broken windows theory by promoting community involvement and social reintegration as key components of crime prevention and rehabilitation. By involving stakeholders in the justice process and addressing the underlying causes of crime, restorative justice programs can reduce recidivism and promote positive social norms and behavior. Restorative justice practices such as victim-offender mediation, community service, and restitution aim to repair the harm caused by crime and prevent further offenses by addressing the root causes of criminal behavior. Restorative justice fosters a sense of community responsibility for addressing crime and promotes healing and reconciliation among all affected parties.Repairing harm caused by crime and restoring relationships between offenders, victims, and the community through restorative justice practices, in criminal justice, conflict resolution, or community development contexts where organizations aim to promote accountability and reduce recidivism rates, in implementing programs or initiatives that involve stakeholders in the justice process and address the underlying causes of crime through restorative justice approaches, in adopting practices or interventions that foster healing and reconciliation among all affected parties and promote positive social norms and behavior through restorative justice principles and values.
Place-Based InterventionsPlace-Based Interventions: Place-based interventions are strategies that target specific locations or neighborhoods with high levels of crime and disorder to improve community safety and well-being. They aim to address the root causes of crime by enhancing the physical, social, and economic conditions of disadvantaged areas. Place-based interventions align with the broken windows theory by recognizing the importance of addressing visible signs of disorder and neglect in high-risk environments. By investing in community resources, social services, and neighborhood revitalization efforts, place-based interventions can create opportunities for positive social interaction and economic development, reducing the prevalence of crime and disorder. Strategies such as community development initiatives, neighborhood improvement projects, and youth engagement programs can help implement place-based interventions and promote resilience and social cohesion in at-risk communities. Place-based interventions empower residents to take ownership of their neighborhoods and work together to create safer and more vibrant places to live and work.Targeting specific locations with high levels of crime and disorder to improve community safety and well-being through place-based interventions, in community development, urban renewal, or crime prevention contexts where organizations aim to address the root causes of crime and improve the quality of life in disadvantaged areas, in implementing strategies or initiatives that enhance the physical, social, and economic conditions of at-risk neighborhoods through place-based interventions, in adopting approaches or interventions that empower residents to take ownership of their neighborhoods and work together to create safer and more vibrant communities through community-driven development and neighborhood revitalization efforts.
Social CohesionSocial Cohesion: Social cohesion refers to the degree of connectedness and solidarity within a community, characterized by mutual trust, cooperation, and shared values. It reflects the strength of social bonds and relationships among community members and contributes to resilience and well-being. Social cohesion aligns with the broken windows theory by emphasizing the importance of collective action and community engagement in preventing crime and disorder. By fostering a sense of belonging and social responsibility, social cohesion can promote positive social norms and behavior and deter antisocial conduct. Strategies such as community-building activities, neighborhood watch programs, and civic engagement initiatives can strengthen social cohesion and build resilience against crime and disorder. Social cohesion enhances community resilience by creating networks of support and mutual aid that enable residents to address challenges collectively and promote the common good. By investing in social cohesion, organizations can create safer, more inclusive communities where individuals feel valued and connected, reducing the likelihood of crime and disorder.Fostering a sense of belonging and social responsibility to prevent crime and disorder and promote community well-being through social cohesion, in community development, crime prevention, or public health contexts where organizations aim to strengthen social bonds and build resilience, in implementing strategies or initiatives that enhance social cohesion through community-building activities, neighborhood watch programs, or civic engagement initiatives, in adopting approaches or interventions that empower residents to address challenges collectively and promote the common good through networks of support and mutual aid, in investing in social cohesion to create safer, more inclusive communities where individuals feel valued and connected and where crime and disorder are less likely to occur.
Crime Prevention Through DesignCrime Prevention Through Design: Crime prevention through design (CPTED) is an approach to urban planning and environmental design that seeks to reduce opportunities for crime and enhance community safety through the strategic design of physical spaces. It emphasizes principles such as natural surveillance, territorial reinforcement, and access control to create environments that are less conducive to criminal activity. CPTED aligns with the broken windows theory by addressing the physical manifestations of disorder and neglect in the built environment. By incorporating crime prevention principles into the design and management of public spaces, CPTED interventions can deter criminal behavior and improve residents’ perceptions of safety. Strategies such as street lighting upgrades, landscaping improvements, and architectural enhancements can enhance natural surveillance and promote social interaction, reducing the prevalence of crime and disorder. Crime prevention through design fosters a sense of ownership and stewardship among residents, empowering them to take an active role in shaping their communities and creating environments that are more resistant to crime.Reducing opportunities for crime and enhancing community safety through the strategic design of physical spaces, in urban planning, architecture, or community development contexts where organizations aim to create environments that are less conducive to criminal activity, in implementing strategies or initiatives that incorporate crime prevention principles into the design and management of public spaces through CPTED approaches, in adopting approaches or interventions that promote natural surveillance, territorial reinforcement, and access control to deter criminal behavior and improve residents’ perceptions of safety through environmental design and management, in investing in crime prevention through design to empower residents to take an active role in shaping their communities and creating environments that are more resistant to crime and disorder.
Positive Youth DevelopmentPositive Youth Development: Positive youth development (PYD) is an approach to youth empowerment and well-being that focuses on promoting the strengths, skills, and assets of young people to foster positive outcomes and resilience. It emphasizes the importance of supportive relationships, meaningful opportunities, and positive environments in shaping adolescent development. Positive youth development aligns with the broken windows theory by recognizing the role of social context and community influences in shaping youth behavior and choices. By providing young people with opportunities for meaningful participation, skill-building, and social connection, PYD programs can reduce the risk factors associated with delinquency and promote pro-social attitudes and behaviors. Strategies such as afterschool programs, mentorship initiatives, and community youth centers can support positive youth development and create supportive environments that empower young people to make positive choices and contribute to their communities. Positive youth development enhances resilience by fostering protective factors and promoting healthy development trajectories, reducing the likelihood of involvement in crime and antisocial behavior.Promoting strengths, skills, and assets of young people to foster positive outcomes and resilience through positive youth development approaches, in youth empowerment, education, or community development contexts where organizations aim to support healthy development and well-being, in implementing programs or initiatives that provide young people with opportunities for meaningful participation, skill-building, and social connection through PYD approaches, in adopting strategies or interventions that foster supportive environments and protective factors for youth by promoting positive relationships, meaningful opportunities, and pro-social attitudes and behaviors through PYD principles and practices, in investing in positive youth development to empower young people to make positive choices and contribute to their communities and reduce their risk of involvement in crime and antisocial behavior.
Problem-Oriented PolicingProblem-Oriented Policing: Problem-oriented policing (POP) is a proactive policing strategy that focuses on identifying and addressing the underlying causes of crime and disorder through targeted interventions. It emphasizes problem-solving, data-driven decision-making, and collaboration between law enforcement, communities, and other stakeholders. Problem-oriented policing aligns with the broken windows theory by recognizing the importance of addressing the root causes of crime and disorder to prevent their recurrence. By conducting thorough problem analyses and implementing tailored responses, problem-oriented policing initiatives can reduce crime rates and improve community safety. Strategies such as crime mapping, problem-solving workshops, and multi-agency partnerships can support problem-oriented policing efforts and enhance the effectiveness of crime reduction strategies. Problem-oriented policing fosters a sense of shared responsibility for public safety and encourages proactive engagement among law enforcement agencies, communities, and other stakeholders in addressing community problems collaboratively.Identifying and addressing underlying causes of crime and disorder through targeted interventions and problem-solving approaches, in law enforcement, crime prevention, or community safety contexts where organizations aim to reduce crime rates and improve community well-being, in implementing strategies or initiatives that use data-driven decision-making and collaboration between stakeholders to address community problems through problem-oriented policing approaches, in adopting approaches or interventions that promote proactive engagement and shared responsibility for public safety by fostering partnerships between law enforcement agencies, communities, and other stakeholders in identifying and addressing the root causes of crime and disorder and preventing their recurrence through problem-oriented policing principles and practices.

Connected Thinking Frameworks

Convergent vs. Divergent Thinking

convergent-vs-divergent-thinking
Convergent thinking occurs when the solution to a problem can be found by applying established rules and logical reasoning. Whereas divergent thinking is an unstructured problem-solving method where participants are encouraged to develop many innovative ideas or solutions to a given problem. Where convergent thinking might work for larger, mature organizations where divergent thinking is more suited for startups and innovative companies.

Critical Thinking

critical-thinking
Critical thinking involves analyzing observations, facts, evidence, and arguments to form a judgment about what someone reads, hears, says, or writes.

Biases

biases
The concept of cognitive biases was introduced and popularized by the work of Amos Tversky and Daniel Kahneman in 1972. Biases are seen as systematic errors and flaws that make humans deviate from the standards of rationality, thus making us inept at making good decisions under uncertainty.

Second-Order Thinking

second-order-thinking
Second-order thinking is a means of assessing the implications of our decisions by considering future consequences. Second-order thinking is a mental model that considers all future possibilities. It encourages individuals to think outside of the box so that they can prepare for every and eventuality. It also discourages the tendency for individuals to default to the most obvious choice.

Lateral Thinking

lateral-thinking
Lateral thinking is a business strategy that involves approaching a problem from a different direction. The strategy attempts to remove traditionally formulaic and routine approaches to problem-solving by advocating creative thinking, therefore finding unconventional ways to solve a known problem. This sort of non-linear approach to problem-solving, can at times, create a big impact.

Bounded Rationality

bounded-rationality
Bounded rationality is a concept attributed to Herbert Simon, an economist and political scientist interested in decision-making and how we make decisions in the real world. In fact, he believed that rather than optimizing (which was the mainstream view in the past decades) humans follow what he called satisficing.

Dunning-Kruger Effect

dunning-kruger-effect
The Dunning-Kruger effect describes a cognitive bias where people with low ability in a task overestimate their ability to perform that task well. Consumers or businesses that do not possess the requisite knowledge make bad decisions. What’s more, knowledge gaps prevent the person or business from seeing their mistakes.

Occam’s Razor

occams-razor
Occam’s Razor states that one should not increase (beyond reason) the number of entities required to explain anything. All things being equal, the simplest solution is often the best one. The principle is attributed to 14th-century English theologian William of Ockham.

Lindy Effect

lindy-effect
The Lindy Effect is a theory about the ageing of non-perishable things, like technology or ideas. Popularized by author Nicholas Nassim Taleb, the Lindy Effect states that non-perishable things like technology age – linearly – in reverse. Therefore, the older an idea or a technology, the same will be its life expectancy.

Antifragility

antifragility
Antifragility was first coined as a term by author, and options trader Nassim Nicholas Taleb. Antifragility is a characteristic of systems that thrive as a result of stressors, volatility, and randomness. Therefore, Antifragile is the opposite of fragile. Where a fragile thing breaks up to volatility; a robust thing resists volatility. An antifragile thing gets stronger from volatility (provided the level of stressors and randomness doesn’t pass a certain threshold).

Systems Thinking

systems-thinking
Systems thinking is a holistic means of investigating the factors and interactions that could contribute to a potential outcome. It is about thinking non-linearly, and understanding the second-order consequences of actions and input into the system.

Vertical Thinking

vertical-thinking
Vertical thinking, on the other hand, is a problem-solving approach that favors a selective, analytical, structured, and sequential mindset. The focus of vertical thinking is to arrive at a reasoned, defined solution.

Maslow’s Hammer

einstellung-effect
Maslow’s Hammer, otherwise known as the law of the instrument or the Einstellung effect, is a cognitive bias causing an over-reliance on a familiar tool. This can be expressed as the tendency to overuse a known tool (perhaps a hammer) to solve issues that might require a different tool. This problem is persistent in the business world where perhaps known tools or frameworks might be used in the wrong context (like business plans used as planning tools instead of only investors’ pitches).

Peter Principle

peter-principle
The Peter Principle was first described by Canadian sociologist Lawrence J. Peter in his 1969 book The Peter Principle. The Peter Principle states that people are continually promoted within an organization until they reach their level of incompetence.

Straw Man Fallacy

straw-man-fallacy
The straw man fallacy describes an argument that misrepresents an opponent’s stance to make rebuttal more convenient. The straw man fallacy is a type of informal logical fallacy, defined as a flaw in the structure of an argument that renders it invalid.

Streisand Effect

streisand-effect
The Streisand Effect is a paradoxical phenomenon where the act of suppressing information to reduce visibility causes it to become more visible. In 2003, Streisand attempted to suppress aerial photographs of her Californian home by suing photographer Kenneth Adelman for an invasion of privacy. Adelman, who Streisand assumed was paparazzi, was instead taking photographs to document and study coastal erosion. In her quest for more privacy, Streisand’s efforts had the opposite effect.

Heuristic

heuristic
As highlighted by German psychologist Gerd Gigerenzer in the paper “Heuristic Decision Making,” the term heuristic is of Greek origin, meaning “serving to find out or discover.” More precisely, a heuristic is a fast and accurate way to make decisions in the real world, which is driven by uncertainty.

Recognition Heuristic

recognition-heuristic
The recognition heuristic is a psychological model of judgment and decision making. It is part of a suite of simple and economical heuristics proposed by psychologists Daniel Goldstein and Gerd Gigerenzer. The recognition heuristic argues that inferences are made about an object based on whether it is recognized or not.

Representativeness Heuristic

representativeness-heuristic
The representativeness heuristic was first described by psychologists Daniel Kahneman and Amos Tversky. The representativeness heuristic judges the probability of an event according to the degree to which that event resembles a broader class. When queried, most will choose the first option because the description of John matches the stereotype we may hold for an archaeologist.

Take-The-Best Heuristic

take-the-best-heuristic
The take-the-best heuristic is a decision-making shortcut that helps an individual choose between several alternatives. The take-the-best (TTB) heuristic decides between two or more alternatives based on a single good attribute, otherwise known as a cue. In the process, less desirable attributes are ignored.

Bundling Bias

bundling-bias
The bundling bias is a cognitive bias in e-commerce where a consumer tends not to use all of the products bought as a group, or bundle. Bundling occurs when individual products or services are sold together as a bundle. Common examples are tickets and experiences. The bundling bias dictates that consumers are less likely to use each item in the bundle. This means that the value of the bundle and indeed the value of each item in the bundle is decreased.

Barnum Effect

barnum-effect
The Barnum Effect is a cognitive bias where individuals believe that generic information – which applies to most people – is specifically tailored for themselves.

First-Principles Thinking

first-principles-thinking
First-principles thinking – sometimes called reasoning from first principles – is used to reverse-engineer complex problems and encourage creativity. It involves breaking down problems into basic elements and reassembling them from the ground up. Elon Musk is among the strongest proponents of this way of thinking.

Ladder Of Inference

ladder-of-inference
The ladder of inference is a conscious or subconscious thinking process where an individual moves from a fact to a decision or action. The ladder of inference was created by academic Chris Argyris to illustrate how people form and then use mental models to make decisions.

Goodhart’s Law

goodharts-law
Goodhart’s Law is named after British monetary policy theorist and economist Charles Goodhart. Speaking at a conference in Sydney in 1975, Goodhart said that “any observed statistical regularity will tend to collapse once pressure is placed upon it for control purposes.” Goodhart’s Law states that when a measure becomes a target, it ceases to be a good measure.

Six Thinking Hats Model

six-thinking-hats-model
The Six Thinking Hats model was created by psychologist Edward de Bono in 1986, who noted that personality type was a key driver of how people approached problem-solving. For example, optimists view situations differently from pessimists. Analytical individuals may generate ideas that a more emotional person would not, and vice versa.

Mandela Effect

mandela-effect
The Mandela effect is a phenomenon where a large group of people remembers an event differently from how it occurred. The Mandela effect was first described in relation to Fiona Broome, who believed that former South African President Nelson Mandela died in prison during the 1980s. While Mandela was released from prison in 1990 and died 23 years later, Broome remembered news coverage of his death in prison and even a speech from his widow. Of course, neither event occurred in reality. But Broome was later to discover that she was not the only one with the same recollection of events.

Crowding-Out Effect

crowding-out-effect
The crowding-out effect occurs when public sector spending reduces spending in the private sector.

Bandwagon Effect

bandwagon-effect
The bandwagon effect tells us that the more a belief or idea has been adopted by more people within a group, the more the individual adoption of that idea might increase within the same group. This is the psychological effect that leads to herd mentality. What in marketing can be associated with social proof.

Moore’s Law

moores-law
Moore’s law states that the number of transistors on a microchip doubles approximately every two years. This observation was made by Intel co-founder Gordon Moore in 1965 and it become a guiding principle for the semiconductor industry and has had far-reaching implications for technology as a whole.

Disruptive Innovation

disruptive-innovation
Disruptive innovation as a term was first described by Clayton M. Christensen, an American academic and business consultant whom The Economist called “the most influential management thinker of his time.” Disruptive innovation describes the process by which a product or service takes hold at the bottom of a market and eventually displaces established competitors, products, firms, or alliances.

Value Migration

value-migration
Value migration was first described by author Adrian Slywotzky in his 1996 book Value Migration – How to Think Several Moves Ahead of the Competition. Value migration is the transferal of value-creating forces from outdated business models to something better able to satisfy consumer demands.

Bye-Now Effect

bye-now-effect
The bye-now effect describes the tendency for consumers to think of the word “buy” when they read the word “bye”. In a study that tracked diners at a name-your-own-price restaurant, each diner was asked to read one of two phrases before ordering their meal. The first phrase, “so long”, resulted in diners paying an average of $32 per meal. But when diners recited the phrase “bye bye” before ordering, the average price per meal rose to $45.

Groupthink

groupthink
Groupthink occurs when well-intentioned individuals make non-optimal or irrational decisions based on a belief that dissent is impossible or on a motivation to conform. Groupthink occurs when members of a group reach a consensus without critical reasoning or evaluation of the alternatives and their consequences.

Stereotyping

stereotyping
A stereotype is a fixed and over-generalized belief about a particular group or class of people. These beliefs are based on the false assumption that certain characteristics are common to every individual residing in that group. Many stereotypes have a long and sometimes controversial history and are a direct consequence of various political, social, or economic events. Stereotyping is the process of making assumptions about a person or group of people based on various attributes, including gender, race, religion, or physical traits.

Murphy’s Law

murphys-law
Murphy’s Law states that if anything can go wrong, it will go wrong. Murphy’s Law was named after aerospace engineer Edward A. Murphy. During his time working at Edwards Air Force Base in 1949, Murphy cursed a technician who had improperly wired an electrical component and said, “If there is any way to do it wrong, he’ll find it.”

Law of Unintended Consequences

law-of-unintended-consequences
The law of unintended consequences was first mentioned by British philosopher John Locke when writing to parliament about the unintended effects of interest rate rises. However, it was popularized in 1936 by American sociologist Robert K. Merton who looked at unexpected, unanticipated, and unintended consequences and their impact on society.

Fundamental Attribution Error

fundamental-attribution-error
Fundamental attribution error is a bias people display when judging the behavior of others. The tendency is to over-emphasize personal characteristics and under-emphasize environmental and situational factors.

Outcome Bias

outcome-bias
Outcome bias describes a tendency to evaluate a decision based on its outcome and not on the process by which the decision was reached. In other words, the quality of a decision is only determined once the outcome is known. Outcome bias occurs when a decision is based on the outcome of previous events without regard for how those events developed.

Hindsight Bias

hindsight-bias
Hindsight bias is the tendency for people to perceive past events as more predictable than they actually were. The result of a presidential election, for example, seems more obvious when the winner is announced. The same can also be said for the avid sports fan who predicted the correct outcome of a match regardless of whether their team won or lost. Hindsight bias, therefore, is the tendency for an individual to convince themselves that they accurately predicted an event before it happened.

Read Next: BiasesBounded RationalityMandela EffectDunning-Kruger EffectLindy EffectCrowding Out EffectBandwagon Effect.

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