In the social sciences, unintended consequences (sometimes unanticipated consequences or unforeseen consequences, more colloquially called knock-on effects) are outcomes of a purposeful action that are not intended or foreseen. The term was popularized in the 20th century by American sociologist Robert K. Merton.
Unintended consequences can be grouped into three types:
Industrialisation (UK) or industrialization (US) is "the period of social and economic change that transforms a human group from an agrarian and feudal society into an industrial society. This involves an extensive reorganisation of an economy for the purpose of manufacturing." Industrialisation is associated with an increase in polluting industries heavily dependent on fossil fuels. With the increasing focus on sustainable development and green industrial policy practices, industrialisation increasingly includes technological leapfrogging, with direct investment in more advanced, cleaner technologies.
The reorganisation of the economy has many unintended consequences both economically and socially. As industrial workers' incomes rise, markets for consumer goods and services of all kinds tend to expand and provide a further stimulus to industrial investment and economic growth. Moreover, family structures tend to shift as extended families tend to no longer live together in one household, location or place.
Robert King Merton (born Meyer Robert Schkolnick; July 4, 1910 – February 23, 2003) was an American sociologist who is considered a founding father of modern sociology, and a major contributor to the subfield of criminology. He served as the 47th president of the American Sociological Association. He spent most of his career teaching at Columbia University, where he attained the rank of University Professor. In 1994 he was awarded the National Medal of Science for his contributions to the field and for having founded the sociology of science.
Merton's contribution to sociology falls into three areas: (1) sociology of science; (2) sociology of crime and deviance; (3) sociological theory. He popularized notable concepts, such as "unintended consequences", the "reference group", and "role strain", but is perhaps best known for the terms "role model" and "self-fulfilling prophecy". The concept of self-fulfilling prophecy, which is a central element in modern sociological, political, and economic theory, is one type of process through which a belief or expectation affects the outcome of a situation or the way a person or group will behave. More specifically, as Merton defined, "the self-fulfilling prophecy is, in the beginning, a false definition of the situation evoking a new behavior, which makes the originally false conception come true".
An insult is an expression, statement, or behavior that is often deliberately disrespectful, offensive, scornful, or derogatory towards an individual or a group. Insults can be intentional or unintentional, and they often aim to belittle, offend, or humiliate the target. While insults may sometimes include factual information, such information is typically presented in a pejorative manner, intended to provoke a negative emotional response or to socially undermine or discredit the target. Insults can also be made unintentionally or in a playful way, but these can, in some cases, also have unintended negative impacts and effects.
Insults can have varying impacts, effects, and meanings depending on intent, use, recipient's understanding of the meaning, intent behind the action or words, and social setting and social norms, including cultural references and meanings.
Collateral damage is a term for any incidental and undesired death, injury or other damage inflicted, especially on civilians, as the result of an activity. Originally coined to describe military operations, it is now also used in non-military contexts to refer to negative unintended consequences of an action.
Since the development of precision-guided munitions in the 1970s, military forces often claim to have gone to great lengths to minimize collateral damage.
The parable of the broken window was introduced by French economist Frédéric Bastiat in his 1850 essay "That Which Is Seen, and That Which Is Not Seen" ("Ce qu'on voit et ce qu'on ne voit pas") to illustrate why destruction, and the money spent to recover from destruction, is not actually a net benefit to society.
The parable seeks to show how opportunity costs, as well as the law of unintended consequences, affect economic activity in ways that are unseen or ignored. The belief that destruction is good for the economy is consequently known as the broken window fallacy or glazier's fallacy.
Carelessness refers to the lack of awareness during a behaviour that can result in unintended consequences. The consequences of carelessness are often undesirable and tend to be mistakes. A lack of concern or an indifference for the consequences of the action due to inattention may be involved in the origin of carelessness.
Carelessness has been hypothesized to be one possible cause of accident-proneness.