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Availability Error
The availability heuristic, also known as availability bias, is a mental shortcut that relies on immediate examples that come to a given person's mind when evaluating a specific topic, concept, method, or decision. This heuristic, operating on the notion that, if something can be recalled, it must be important, or at least more important than alternative solutions not as readily recalled, is inherently biased toward recently acquired information. The mental availability of an action's consequences is positively related to those consequences' perceived magnitude. In other words, the easier it is to recall the consequences of something, the greater those consequences are often perceived to be. Most notably, people often rely on the content of their recall if its implications are not called into question by the difficulty they have in recalling it. Overview and history In the late 1960s and early 1970s, Amos Tversky and Daniel Kahneman began work on a series of papers examining "he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heuristics In Judgment And Decision Making
Heuristics (from Ancient Greek εὑρίσκω, ''heurískō'', "I find, discover") is the process by which humans use mental shortcuts to arrive at decisions. Heuristics are simple strategies that humans, animals, organizations, and even machines use to quickly form judgments, make decisions, and find solutions to complex problems. Often this involves focusing on the most relevant aspects of a problem or situation to formulate a solution. While heuristic processes are used to find the answers and solutions that are ''most'' likely to work or be correct, they are not always right or the most accurate. Judgments and decisions based on heuristics are simply good enough to satisfy a pressing need in situations of uncertainty, where information is incomplete. In that sense they can differ from answers given by logic and probability. The economist and cognitive psychologist Herbert A. Simon introduced the concept of heuristics in the 1950s, suggesting there were limitations to ratio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Homicide
Homicide is an act in which a person causes the death of another person. A homicide requires only a Volition (psychology), volitional act, or an omission, that causes the death of another, and thus a homicide may result from Accident, accidental, Reckless homicide, reckless, or Negligent homicide, negligent acts even if there is no Intent (law), intent to cause harm. It is separate from suicide. Homicides can be divided into many overlapping legal categories, such as murder, manslaughter, justifiable homicide, assassination, killing in war (either following the laws of war or as a war crime), euthanasia, and capital punishment, depending on the circumstances of the death. These different types of homicides are often treated very differently in human Society, societies; some are considered crimes, while others are permitted or even Court order, ordered by the Law, legal system. Criminality Criminal homicide takes many forms, including accidental killing and murder. Criminal ho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
S&P 500 Index
The Standard and Poor's 500, or simply the S&P 500, is a stock market index tracking the stock performance of 500 leading companies listed on stock exchanges in the United States. It is one of the most commonly followed equity indices and includes approximately 80% of the total market capitalization of U.S. public companies, with an aggregate market cap of more than $49.8 trillion as of March 31, 2025. The S&P 500 index is a Free-float weighted/ capitalization-weighted index. As of April 2025, the ten largest companies on the list of S&P 500 companies accounted for approximately 35% of the market capitalization of the index and were, in order of highest to lowest weighting: Apple (6.4%), Microsoft (6.2%), Nvidia (6.0%), Amazon.com (3.8%), Alphabet (3.6%, including both class A & C shares), Meta Platforms (2.7%), Berkshire Hathaway (2.0%), Broadcom (1.8%), Tesla (1.6%), and JPMorgan Chase (1.4%). The components that have increased their dividends in 25 consecutive years are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Franklin Templeton
Franklin Resources, Inc. is an American multinational investment management holding company that, together with its subsidiaries, is referred to as Franklin Templeton; it is a global investment firm founded in New York City in 1947 as Franklin Distributors, Inc. It is listed on the New York Stock Exchange under the ticker symbol BEN, in honor of Benjamin Franklin, for whom the company is named, and who was admired by founder Rupert Johnson Sr. In 1973, the company's headquarters moved from New York to San Mateo, California. History The company was founded in 1947 in New York by Rupert H. (Harris) Johnson Sr. (1900–1989), who ran a successful retail brokerage firm from an office on Wall Street. He named the company for American polymath Benjamin Franklin because Franklin espoused frugality and prudence when it came to saving and investing. The company's first line of mutual funds, Franklin Custodian Funds, was a series of conservatively managed equity and bond funds designed t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stock Market
A stock market, equity market, or share market is the aggregation of buyers and sellers of stocks (also called shares), which represent ownership claims on businesses; these may include ''securities'' listed on a public stock exchange as well as stock that is only traded privately, such as shares of private companies that are sold to investors through equity crowdfunding platforms. Investments are usually made with an investment strategy in mind. Size of the market The total market capitalization of all publicly traded stocks worldwide rose from US$2.5 trillion in 1980 to US$111 trillion by the end of 2023. , there are 60 stock exchanges in the world. Of these, there are 16 exchanges with a market capitalization of $1 trillion or more, and they account for 87% of global market capitalization. Apart from the Australian Securities Exchange, these 16 exchanges are all in North America, Europe, or Asia. By country, the largest stock markets as of January 2022 are in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Financial Risk
Financial risk is any of various types of risk associated with financing, including financial transactions that include company loans in risk of default. Often it is understood to include only downside risk, meaning the potential for financial loss and uncertainty about its extent. Modern portfolio theory initiated by Harry Markowitz in 1952 under his thesis titled "Portfolio Selection" is the discipline and study which pertains to managing market and financial risk. In modern portfolio theory, the variance (or standard deviation In statistics, the standard deviation is a measure of the amount of variation of the values of a variable about its Expected value, mean. A low standard Deviation (statistics), deviation indicates that the values tend to be close to the mean ( ...) of a portfolio is used as the definition of risk. Types According to Bender and Panz (2021), financial risks can be sorted into five different categories. In their study, they apply an algorith ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Influenza
Influenza, commonly known as the flu, is an infectious disease caused by influenza viruses. Symptoms range from mild to severe and often include fever, runny nose, sore throat, muscle pain, headache, coughing, and fatigue. These symptoms begin one to four (typically two) days after exposure to the virus and last for about two to eight days. Diarrhea and vomiting can occur, particularly in children. Influenza may progress to pneumonia from the virus or a subsequent bacterial infection. Other complications include acute respiratory distress syndrome, meningitis, encephalitis, and worsening of pre-existing health problems such as asthma and cardiovascular disease. There are four types of influenza virus: types A, B, C, and D. Aquatic birds are the primary source of influenza A virus (IAV), which is also widespread in various mammals, including humans and pigs. Influenza B virus (IBV) and influenza C virus (ICV) primarily infect humans, and influenza D virus (IDV) i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perceived Risk
Risk perception is the subjectivity, subjective judgement that people make about the characteristics and severity of a risk. Risk perceptions often differ from statistical assessments of risk since they are affected by a wide range of affective (emotions, feelings, moods, etc.), Cognition, 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 (legal), 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 tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AIDS
The HIV, human immunodeficiency virus (HIV) is a retrovirus that attacks the immune system. Without treatment, it can lead to a spectrum of conditions including acquired immunodeficiency syndrome (AIDS). It is a Preventive healthcare, preventable disease. It can be managed with treatment and become a manageable chronic health condition. While there is no cure or vaccine for HIV, Management of HIV/AIDS, antiretroviral treatment can slow the course of the disease, and if used before significant disease progression, can extend the life expectancy of someone living with HIV to a nearly standard level. An HIV-positive person on treatment can expect to live a normal life, and die with the virus, not of it. Effective #Treatment, treatment for HIV-positive people (people living with HIV) involves a life-long regimen of medicine to suppress the virus, making the viral load undetectable. Treatment is recommended as soon as the diagnosis is made. An HIV-positive person who has an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Research On The Effects Of Violence In Mass Media
The study of violence in mass media analyzes the degree of correlation between themes of violence in media sources (particularly violence in video games, television and films) with real-world aggression and violence over time. Many social scientists support the correlation, however, some scholars argue that media research has methodological problems and that findings are exaggerated. Other scholars have suggested that the correlation exists, but can be unconventional to the current public belief. Complaints about the possible detrimental effects of mass media appear throughout history; Plato was concerned about the effects of plays on youth. Various media/genres, including dime novels, comic books, jazz, rock and roll, role playing/ computer games, television, films, internet (by computer or cell phone) and many others have attracted speculation that consumers of such media may become more aggressive, rebellious or immoral. This has led some scholars to conclude that statements ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Social Reality
Social reality refers to a socially constructed perspective of the world, consisting of the accepted social tenets of a community involving laws and social representations. It is distinct from biological reality or individual cognitive reality, representing as it does on a subjective level created through social interaction and thereby transcending individual motives and actions. Radical constructivism would cautiously describe social reality as the product of uniformities among observers (whether or not including the current observer themselves). Schütz, Durkheim, and Spencer The problem of social reality has been treated exhaustively by philosophers in the phenomenological tradition, particularly Alfred Schütz, who used the term "social world" to designate this distinct level of reality. Within the social world, Schütz distinguished between social reality that could be experienced directly (''umwelt'') and a social reality beyond the immediate horizon, which could yet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lightning
Lightning is a natural phenomenon consisting of electrostatic discharges occurring through the atmosphere between two electrically charged regions. One or both regions are within the atmosphere, with the second region sometimes occurring on the land, ground. Following the lightning, the regions become partially or wholly electrically neutralized. Lightning involves a near-instantaneous release of energy on a scale averaging between 200 megajoules and 7 gigajoules. The air around the lightning flash rapidly heats to temperatures of about . There is an emission of electromagnetic radiation across a wide range of wavelengths, some visible as a bright flash. Lightning also causes thunder, a sound from the shock wave which develops as heated gases in the vicinity of the discharge experience a sudden increase in pressure. The most common occurrence of a lightning event is known as a thunderstorm, though they can also commonly occur in other types of energetic weather systems, such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
