Many jurisdictions, local as well as national, either ban gambling or heavily control it by licensing the vendors. Such regulation generally leads to "gambling tourism and illegal gambling in the areas where it is not allowed. The involvement of governments, through regulation and taxation, has led to a close connection between many governments and gaming organizations, where legal gambling provides significant government revenue, such as in "Monaco or "Macau, China.
There is generally legislation requiring that the odds in gaming devices are "statistically random, to prevent manufacturers from making some high-payoff results impossible. Since these high-payoffs have very low "probability, a house bias can quite easily be missed unless the odds are checked carefully.
Most jurisdictions that allow gambling require participants to be above a certain age. In some jurisdictions, the "gambling age differs depending on the type of gambling. For example, in many American states one must be over 21 to enter a casino, but may buy a lottery ticket after turning 18.
Because contracts of "insurance have many features in common with wagers, insurance contracts are often distinguished under law as agreements in which either party has an interest in the "bet-upon" outcome beyond the specific financial terms. e.g.: a "bet" with an insurer on whether one's house will burn down is not gambling, but rather insurance — as the homeowner has an obvious interest in the continued existence of his/her home independent of the purely financial aspects of the "bet" (i.e., the insurance policy). Nonetheless, both insurance and gambling contracts are typically considered "aleatory contracts under most legal systems, though they are subject to different types of regulation.
Under "common law, particularly "English Law ("English unjust enrichment), a gambling contract may not give a casino "bona fide purchaser status, permitting the recovery of stolen funds in some situations. In "Lipkin Gorman v Karpnale Ltd, where a solicitor used stolen funds to gamble at a casino, the "House of Lords overruled the High Court's previous verdict, adjudicating that the casino return the stolen funds less those subject to any "change of position defence. U.S. Law precedents are somewhat similar. For "case law on recovery of gambling losses where the loser had stolen the funds see "Rights of owner of stolen money as against one who won it in gambling transaction from thief".
An interesting wrinkle to these fact pattern is to ask what happens when the person trying to make recovery is the gambler's spouse, and the money or property lost was either the spouse's, or was "community property. This was a minor plot point in a "Perry Mason novel, The Case of the Singing Skirt, and it cites an actual case Novo v. Hotel Del Rio.
Religious perspectives on gambling have been mixed. Ancient "Hindu poems like the "Gambler's Lament and the "Mahabharata testify to the popularity of gambling among ancient Indians. However, the text "Arthashastra (c. 4th century BCE) recommends taxation and control of gambling. Ancient Jewish authorities frowned on gambling, even disqualifying professional gamblers from testifying in court.
The Catholic Church holds the position that there is no moral impediment to gambling, so long as it is fair, all bettors have a reasonable chance of winning, that there is no fraud involved, and the parties involved do not have actual knowledge of the outcome of the bet (unless they have disclosed this knowledge), Gambling has often been seen as having "social consequences, as satirized by "Balzac. For these social and religious reasons, most legal jurisdictions limit gambling, as advocated by "Pascal. as long as the following conditions are met; the gambler can afford losing the bet, stops when the limit is reached, and the motivation is entertainment and not personal gain leading to the "love of money" or making a living. In general, Catholic bishops have opposed "casino gambling on the grounds it too often tempts people into problem gambling or addiction, has particularly negative effects on poor people; they sometimes also cite secondary effects such as increases in loan sharking, prostitution, corruption, and general public immorality. In at least one case, the same bishop opposing a casino has sold land to be used for its construction. Some parish pastors have also opposed casinos for the additional reason that they would take customers away from church "bingo and annual festivals where games such as "blackjack, "roulette, "craps, and "poker are used for fundraising.
Although different interpretations of "sharia law exist in the Muslim world, there is a consensus among the "ulema that gambling is "haraam (sinful). In assertions made during its prohibition, Muslim jurists describe gambling as being both unquranic and as being generally harmful to the Muslim community. The Islamic terminology for gambling is maisar however this also has a second definition meaning easy money. In parts of the world that implement full sharia law such as "Aceh, punishments for Muslim gamblers can range up to 12 lashes or a one-year prison term and a fine for those who provide a venue for such practises. Some Islamic nations prohibit gambling; most other countries "regulate it.
Types of gambling
While almost any game can be played for money, and any game typically played for money can also be played just for fun, some games are generally offered in a "casino setting.
Non-casino gambling games
Gambling games that take place outside of casinos include Bingo (as played in the "US and "UK), "dead pool, "lotteries, "pull-tab games and "scratchcards, and "Mahjong.
Other non-casino gambling games include:
- "Card games, such as "Liar's poker, "Bridge, "Basset, "Lansquenet, "Piquet, "Put, "Teen patti
- "Carnival Games such as "The Razzle or Hanky Pank
- "Coin-tossing games such as "Head and Tail, "Two-up*
- "Confidence tricks such as "Three-card Monte or the "Shell game
- "Dice-based games, such as "Backgammon, "Liar's dice, "Passe-dix, "Hazard, "Threes, "Pig, or "Mexico (or Perudo);
*Although coin tossing isn't usually played in a casino, it has been known to be an official gambling game in some Australian casinos
Fixed-odds betting and "Parimutuel betting frequently occur at many types of sporting events, and political elections. In addition many "bookmakers offer fixed odds on a number of non-sports related outcomes, for example the direction and extent of movement of various "financial indices, the winner of "television competitions such as "Big Brother, and "election results. Interactive "prediction markets also offer trading on these outcomes, with "shares" of results trading on an open market.
One of the most widespread forms of gambling involves betting on "horse or "greyhound racing. Wagering may take place through "parimutuel pools, or "bookmakers may take bets personally. Parimutuel wagers pay off at prices determined by support in the wagering pools, while bookmakers pay off either at the odds offered at the time of accepting the bet; or at the median odds offered by track bookmakers at the time the race started.
Betting on team sports has become an important "service industry in many countries. For example, millions of people play the "football pools every week in the "United Kingdom. In addition to organized sports betting, both legal and illegal, there are many side-betting games played by casual groups of spectators, such as "NCAA Basketball Tournament Bracket Pools, "Super Bowl Squares, "Fantasy Sports Leagues with monetary entry fees and winnings, and in-person spectator games like "Moundball.
Arbitrage betting is a theoretically risk-free betting system in which every outcome of an event is bet upon so that a known profit will be made by the bettor upon completion of the event, regardless of the outcome. Arbitrage betting is a combination of the ancient art of "arbitrage trading and gambling, which has been made possible by the large numbers of bookmakers in the marketplace, creating occasional opportunities for arbitrage.
Other types of betting
One can also bet with another person that a statement is true or false, or that a specified event will happen (a "back bet") or will not happen (a "lay bet") within a specified time. This occurs in particular when two people have opposing but strongly held views on truth or events. Not only do the parties hope to gain from the bet, they place the bet also to demonstrate their certainty about the issue. Some means of determining the issue at stake must exist. Sometimes the amount bet remains nominal, demonstrating the outcome as one of principle rather than of financial importance.
"Betting exchanges allow consumers to both back and lay at odds of their choice. Similar in some ways to a stock exchange, a bettor may want to back a horse (hoping it will win) or lay a horse (hoping it will lose, effectively acting as bookmaker).
Many betting systems have been created in an attempt to "beat the house" but no system can make a mathematically unprofitable bet in terms of "expected value profitable over time. Widely used systems include:
- "Card counting – Many systems exist for "Blackjack to keep track of the ratio of ten values to all others; when this ratio is high the player has an advantage and should increase the amount of their bets. Keeping track of cards dealt confers an advantage in other games as well.
- "Due-column betting – A variation on fixed profits betting in which the bettor sets a target profit and then calculates a bet size that will make this profit, adding any losses to the target.
- Fixed profits – the stakes vary based on the odds to ensure the same profit from each winning selection.
- Fixed stakes – a traditional system of staking the same amount on each selection.
- "Kelly – the optimum level to bet to maximize your future median bank level.
- "Martingale – A system based on staking enough each time to recover losses from previous bet(s) until one wins.
Other uses of the term "gambling"
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Many risk-return choices are sometimes referred to colloquially as "gambling." Whether this terminology is acceptable is a matter of debate:
- Emotional or physical risk-taking, where the risk-return ratio is not quantifiable (e.g., "skydiving, "campaigning for political office, asking someone for a date, etc.)
- "Insurance is a method of shifting risk from one party to another. Insurers use actuarial methods to calculate appropriate premiums, which is similar to calculating gambling odds. Insurers set their premiums to obtain a long term positive expected return in the same manner that professional gamblers select which bets to make. While insurance is sometimes distinguished from gambling by the requirement of an "insurable interest, the equivalent in gambling is simply betting against one's own best interests (e.g., a sports coach betting against his own team to mitigate the financial repercussions of a losing season).
- Situations where the possible return is of secondary importance to the wager/purchase (e.g. entering a "raffle in support of a "charitable cause)
"Investments are also usually not considered gambling, although some investments can involve significant risk. Examples of investments include "stocks, "bonds and "real estate. Starting a business can also be considered a form of investment. Investments are generally not considered gambling when they meet the following criteria:
- Economic utility
- Positive expected returns (at least in the long term)
- Underlying value independent of the risk being undertaken
Some "speculative investment activities are particularly risky, but are sometimes perceived to be different from gambling:
- Foreign currency exchange ("forex) transactions
- "Prediction markets
- Securities "derivatives, such as "options or "futures, where the value of the derivative is dependent on the value of the underlying asset at a specific point in time (typically the derivative's associated expiration date)
Studies show that though many people participate in gambling as a form of "recreation or even as a means to gain an income, gambling, like any behavior that involves variation in "brain chemistry, can become a harmful, "behavioral addiction. Behavioral addiction can occur with all the negative consequences in a person's life minus the physical issues faced by people who compulsively engage in drug and alcohol abuse. "Reinforcement schedules may also make gamblers persist in gambling even after repeated losses.["medical citation needed]
The Russian writer and problem gambler "Fyodor Dostoevsky portrays in his novella "The Gambler the psychological implications of gambling and how gambling can affect gamblers. He also associates gambling and the idea of ""getting rich quick", suggesting that Russians may have a particular affinity for gambling. Dostoevsky shows the effect of betting money for the chance of gaining more in 19th-century Europe. The association between Russians and gambling has fed legends of the origins of "Russian roulette. There are many symptoms for gambling and reasons for why people do it. Gamblers gamble more money to try and win back money that they have lost and some gamble to relieve feelings of helplessness and anxiety.
Psychological biases in gambling
Gamblers exhibit a number of "cognitive and "motivational biases that distort the perceived odds of events and that influence their preferences for gambles. For example, gambler exhibit a costly aversion to betting against their favorite team or political candidate.
- Preference for likely outcomes. When gambles are selected through a choice process - when people indicate which gamble they prefer from a set of gambles (e.g., win/lose, over/under) - people tend to prefer to bet on the outcome that is more likely to occur. Bettors tend to prefer to bet on favorites in athletic competitions, and sometimes will accept even bets on favorites when offered more favorable bets on the less likely outcome (e.g., an underdog team).
- "Optimism/Desirability Bias. Gamblers also exhibit optimism, overestimating the likelihood that desired events will occur. Fans of NFL underdog teams, for example, will prefer to bet on their teams at even odds than to bet on the favorite, whether the bet is $5 or $50.
- Reluctance to bet against (hedge) desired outcomes. People are reluctant to bet against desired outcomes that are relevant to their identity. Gamblers exhibit reluctance to bet against the success of their preferred U.S. presidential candidates and Major League Baseball, National Football League, National Collegiate Athletic Association (NCAA) basketball, and NCAA hockey teams. More than 45% of NCAA fans in Studies 5 and 6, for instance, turned down a "free" real $5 bet against their team. From a psychological perspective, such a ""hedge" creates an interdependence dilemma—a motivational conflict between a short-term monetary gain and the long-term benefits accrued from feelings of "identification with and loyalty to a position, person, or group whom the bettor desires to succeed. In economic terms, this conflicted decision can be modeled as a trade-off between the outcome utility gained by hedging (e.g., money) and the "diagnostic costs it incurs (e.g., disloyalty). People make "inferences about their beliefs and identity from their behavior. If a person is uncertain about an aspect of her identity, such as the extent to which she values a candidate or team, hedging may signal to her that she is not as committed to that candidate or team as she originally believed. If the diagnostic cost of this self-signal and the resulting identity change are substantial, it may outweigh the outcome utility of hedging, and she may reject even very generous hedges.
- Ratio bias. Gamblers will prefer gambles with worse odds that are drawn from a large sample (e.g., drawing one of 89 red balls from an urn containing 100 red and blue balls) to better odds that are drawn from a small sample (drawing one of 9 red balls from an urn containing 10 red and blue balls).
- "Gambler's fallacy/positive recency bias.
- "Comps (casino)
- "Faro Ladies
- "Gambler's conceit
- "Gambler's fallacy
- "Gambler's ruin
- "Gaming mathematics
- "List of bets
- "Mobile gambling
- "Online gambling
- "Gambling and the Law®".
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- See 38 Am. Jur. 2d Gambling § 162.
- Annotation, 44 A.L.R.2d 1242.
- 141 Cal. 2d 304, 295 P.2d 576 (3d Dist. 1956) (wife entitled to recover husband's gambling losses on the ground that he had made a gift of community property without her written consent); see also 38 Am. Jur. 2d Gambling § 175 (statutory provisions allowing third parties to recover gambling losses).
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- Kucharek, Rev. Cass (1974). To settle your conscience a layman's guide to Catholic moral theology. "Our Sunday Visitor. "ISBN "0-87973-877-4.
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- Morrison, Rod (2012). The Principles of Project Finance. p. 50.
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- International Association of Gaming Regulators: Members
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