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Risk Perception
Risk perception is the subjective judgement that people make about the characteristics and severity of a risk. Risk perceptions are different for the real risks since they are affected by a wide range of affective (emotions, feelings, moods, etc.), cognitive (gravity of events, media coverage, risk-mitigating measures, etc.), contextual (framing of risk information, availability of alternative information sources, etc.), and individual (personality traits, previous experience, age, etc.) factors. Several theories have been proposed to explain why different people make different estimates of the dangerousness of risks. Three major families of theory have been developed: psychology approaches (heuristics and cognitive), anthropology/sociology approaches (cultural theory) and interdisciplinary approaches (social amplification of risk framework). Early theories The study of risk perception arose out of the observation that experts and lay people often disagreed about how risky various ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Factors Of Risk Perceptions
Factor, a Latin word meaning "who/which acts", may refer to: Commerce * Factor (agent), a person who acts for, notably a mercantile and colonial agent * Factor (Scotland), a person or firm managing a Scottish estate * Factors of production, such a factor is a resource used in the production of goods and services Science and technology Biology * Coagulation factors, substances essential for blood coagulation * Environmental factor, any abiotic or biotic factor that affects life * Enzyme, proteins that catalyze chemical reactions * Factor B, and factor D, peptides involved in the alternate pathway of immune system complement activation * Transcription factor, a protein that binds to specific DNA sequences Computer science and information technology * Factor (programming language), a concatenative stack-oriented programming language * Factor (Unix), a utility for factoring an integer into its prime factors * Factor, a substring, a subsequence of consecutive symbols in a st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Illusion Of Validity
Illusion of validity is a cognitive bias in which a person overestimates their ability to interpret and predict accurately the outcome when analyzing a set of data, in particular when the data analyzed show a very consistent pattern—that is, when the data "tell" a coherent story. This effect persists even when the person is aware of all the factors that limit the accuracy of their predictions, that is when the data and/or methods used to judge them lead to highly fallible predictions. Daniel Kahneman, Paul Slovic, and Amos Tversky explain the illusion as follows: "people often predict by selecting the output...that is most representative of the input....The confidence they have in their prediction depends primarily on the degree of representativeness...with little or no regard for the factors that limit predictive accuracy. Thus, people express great confidence in the prediction that a person is a librarian when given a description of his personality which matches the stereot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aaron Wildavsky
Aaron Wildavsky (May 31, 1930 – September 4, 1993) was an American political scientist known for his pioneering work in public policy, government budgeting, and risk management. Early years A native of Brooklyn in New York, Wildavsky was the son of Ukrainian Jewish immigrants. After graduating from Brooklyn College, he served in the U.S. Navy and then won a Fulbright Fellowship to the University of Sydney for 1954–55. Wildavsky returned to the U.S. to attend graduate school at Yale University. His PhD dissertation, a study of the politics of the Dixon-Yates atomic energy controversy, was completed in 1958. Career Wildavsky taught at Oberlin College from 1958 until 1962, then lived and worked in Washington D.C for a year before moving to the University of California, Berkeley, where he worked as a professor of political science for the rest of his life. At Berkeley, he was chairman of the political science department (1966–1969) and founding dean of the Graduate School ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mary Douglas
Dame Mary Douglas, (25 March 1921 – 16 May 2007) was a British anthropologist, known for her writings on human culture and symbolism, whose area of speciality was social anthropology. Douglas was considered a follower of Émile Durkheim and a proponent of structuralist analysis, with a strong interest in comparative religion. Biography She was born as Margaret Mary Tew in Sanremo, Italy, to Gilbert and Phyllis (née Twomey) Tew. Her father, Gilbert Tew, was a member of the Indian Civil Service serving in Burma, as was her maternal grandfather, Sir Daniel Twomey, who retired as the Chief Judge of the Chief Court of Lower Burma. Her mother was a devout Roman Catholic, and Mary and her younger sister, Patricia, were raised in that faith. After their mother's death, the sisters were raised by their maternal grandparents and attended the Roman Catholic Sacred Heart Convent in Roehampton. Mary went on to study at St. Anne's College, Oxford, from 1939 to 1943; there sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Preference
In psychology, economics and philosophy, preference is a technical term usually used in relation to choosing between alternatives. For example, someone prefers A over B if they would rather choose A than B. Preferences are central to decision theory because of this relation to behavior. Some methods such as Ordinal Priority Approach use preference relation for decision-making. As connative states, they are closely related to desires. The difference between the two is that desires are directed at one object while preferences concern a comparison between two alternatives, of which one is preferred to the other. In insolvency, the term is used to determine which outstanding obligation the insolvent party has to settle first. Psychology In psychology, preferences refer to an individual's attitude towards a set of objects, typically reflected in an explicit decision-making process (Lichtenstein & Slovic, 2006). The term is also used to mean evaluative judgment in the sense of liking ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paul Slovic
Paul Slovic (born 1938 in Chicago) is a professor of psychology at the University of Oregon and the president oDecision Research Decision Research is a collection of scientists from all over the nation and in other countries that study decision-making in times when risks are involved. He was also the president for the Society of Risk Analysis until 1984. He earned his undergraduate degree at Stanford University in 1959 and his PhD in psychology at the University of Michigan in 1964 and has received honorary doctorates from the Stockholm School of Economics and the University of East Anglia. He is past president of the Society for Risk Analysis and in 1991 received its Distinguished Contribution Award. In 1993, he received the Distinguished Scientific Contribution Award from the American Psychological Association, and in 1995 he received the Outstanding Contribution to Science Award from the Oregon Academy of Science. In 2016 he was elected to the National Academy of Sciences. Slo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melissa Finucane
Melissa is a female given name. The name comes from the Greek word μέλισσα (''mélissa''), "bee", which in turn comes from μέλι (''meli''), "honey". In Hittite, ''melit'' signifies "honey". ''Melissa'' also refers to the plant ''Melissa officinalis'' (family Lamiaceae), known as lemon balm. Melissa is a common variant form, with others being Malissa, Melesa, Melessa, Meliza, Mellisa, Melosa, and Molissa. In Ireland it is sometimes used as a feminine form of the Gaelic male name ''Maoilíosa'', which means "servant of Jesus", which is of an origin independent of the Hittites. According to Greek mythology, perhaps reflecting Minoan culture, making her the daughter of a Cretan king Melisseus, whose ''-issos'' ending is Pre-Greek, Melissa was a nymph who discovered and taught the use of honey and from whom bees were believed to have received their name. She was one of the nymph nurses of Zeus, sister to Amaltheia, but rather than feeding the baby milk, Melissa, ap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insurance
Insurance is a means of protection from financial loss in which, in exchange for a fee, a party agrees to compensate another party in the event of a certain loss, damage, or injury. It is a form of risk management, primarily used to hedge against the risk of a contingent or uncertain loss. An entity which provides insurance is known as an insurer, insurance company, insurance carrier, or underwriter. A person or entity who buys insurance is known as a policyholder, while a person or entity covered under the policy is called an insured. The insurance transaction involves the policyholder assuming a guaranteed, known, and relatively small loss in the form of a payment to the insurer (a premium) in exchange for the insurer's promise to compensate the insured in the event of a covered loss. The loss may or may not be financial, but it must be reducible to financial terms. Furthermore, it usually involves something in which the insured has an insurable interest established by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Expected Utility
The expected utility hypothesis is a popular concept in economics that serves as a reference guide for decisions when the payoff is uncertain. The theory recommends which option rational individuals should choose in a complex situation, based on their risk appetite and preferences. The expected utility hypothesis states an agent chooses between risky prospects by comparing expected utility values (i.e. the weighted sum of adding the respective utility values of payoffs multiplied by their probabilities). The summarised formula for expected utility is U(p)=\sum u(x_k)p_k where p_k is the probability that outcome indexed by k with payoff x_k is realized, and function ''u'' expresses the utility of each respective payoff. On a graph, the curvature of u will explain the agent's risk attitude. For example, if an agent derives 0 utils from 0 apples, 2 utils from one apple, and 3 utils from two apples, their expected utility for a 50–50 gamble between zero apples and two is 0.5''u''( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conjunction Fallacy
The conjunction fallacy (also known as the Linda problem) is an inference from an array of particulars, in violation of the laws of probability, that a conjoint set of two or more conclusions is likelier than any single member of that same set. It is a type of formal fallacy. Definition and basic example The most often-cited example of this fallacy originated with Amos Tversky and Daniel Kahneman. ''Linda is 31 years old, single, outspoken, and very bright. She majored in philosophy. As a student, she was deeply concerned with issues of discrimination and social justice, and also participated in anti-nuclear demonstrations.'' Which is more probable? # Linda is a bank teller. # Linda is a bank teller and is active in the feminist movement. The majority of those asked chose option 2. However, the probability of two events occurring together (that is, in conjunction) is always less than or equal to the probability of either one occurring alone—formally, for two events ''A'' and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anchoring And Adjustment
The anchoring effect is a cognitive bias whereby an individual's decisions are influenced by a particular reference point or 'anchor'. Both numeric and non-numeric anchoring have been reported in research. In numeric anchoring, once the value of the anchor is set, subsequent arguments, estimates, etc. made by an individual may change from what they would have otherwise been without the anchor. For example, an individual may be more likely to purchase a car if it is placed alongside a more expensive model (the anchor). Prices discussed in negotiations that are lower than the anchor may seem reasonable, perhaps even cheap to the buyer, even if said prices are still relatively higher than the actual market value of the car. Another example may be when estimating the orbit of Mars, one might start with the Earth's orbit (365 days) and then adjust upward until they reach a value that seems reasonable (usually less than 687 days, the correct answer). The original description of the an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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