Saturday, August 22, 2009

money

Money is anything that is generally accepted as payment for goods and services and repayment of debts.[1][2] The main functions of money are distinguished as: a medium of exchange, a unit of account, a store of value, and occasionally, a standard of deferred payment.[3][4]

Nearly all contemporary money systems at the national level are fiat money systems. Fiat money is without value as a physical commodity, and derives its value by being declared by a government to be legal tender; that is, it must be accepted as a form of payment within the national boundaries of the country, for "all debts, public and private". By law, the refusal of a legal tender (offering) extinguishes the debt in the same way acceptance does.[5] Some bullion coins such as the Australian Gold Nugget and American Eagle are legal tender, however, they trade based on the market price of the metal content as a commodity, rather than their legal tender face value (which is usually only a small fraction of their bullion value).[6][7]

The money supply of a country is usually held to consist of currency (banknotes and coins) and 'deposit money' (the balance held in checking accounts and savings accounts). These demand deposits usually account for a much larger part of the money supply than currency.[8][9] Deposit money is intangible and exists only in the form of various bank records. Despite being intangible, deposit money still performs the basic functions of money, as checks are generally accepted as a form of payment and as a means of transferring ownership of deposit money.[10]

Tuesday, August 11, 2009

Save your life

Insurance, in law and economics, is a form of risk management primarily used to hedge against the risk of a contingent loss. Insurance is defined as the equitable transfer of the risk of a loss, from one entity to another, in exchange for a premium, and can be thought of as a guaranteed small loss to prevent a large, possibly devastating loss. An insurer is a company selling the insurance; an insured or policyholder is the person or entity buying the insurance. The insurance rate is a factor used to determine the amount to be charged for a certain amount of insurance coverage, called the premium. Risk management, the practice of appraising and controlling risk, has evolved as a discrete field of study and practice.

Principles of insurance
Financial market participants

Collective investment schemesCredit UnionsInsurance companiesInvestment banksPension fundsPrime BrokersTrusts
Finance seriesFinancial marketParticipantsCorporate financePersonal financePublic financeBanks and BankingFinancial regulation
v • d • e
Commercially insurable risks typically share seven common characteristics.
[1]
A large number of homogeneous exposure units. The vast majority of insurance policies are provided for individual members of very large classes. Automobile insurance, for example, covered about 175 million automobiles in the United States in 2004.[2] The existence of a large number of homogeneous exposure units allows insurers to benefit from the so-called “law of large numbers,” which in effect states that as the number of exposure units increases, the actual results are increasingly likely to become close to expected results. There are exceptions to this criterion. Lloyd's of London is famous for insuring the life or health of actors, actresses and sports figures. Satellite Launch insurance covers events that are infrequent. Large commercial property policies may insure exceptional properties for which there are no ‘homogeneous’ exposure units. Despite failing on this criterion, many exposures like these are generally considered to be insurable.
Definite Loss. The event that gives rise to the loss that is subject to the insured, at least in principle, take place at a known time, in a known place, and from a known cause. The classic example is death of an insured person on a life insurance policy. Fire, automobile accidents, and worker injuries may all easily meet this criterion. Other types of losses may only be definite in theory. Occupational disease, for instance, may involve prolonged exposure to injurious conditions where no specific time, place or cause is identifiable. Ideally, the time, place and cause of a loss should be clear enough that a reasonable person, with sufficient information, could objectively verify all three elements.
Accidental Loss. The event that constitutes the trigger of a claim should be fortuitous, or at least outside the control of the beneficiary of the insurance. The loss should be ‘pure,’ in the sense that it results from an event for which there is only the opportunity for cost. Events that contain speculative elements, such as ordinary business risks, are generally not considered insurable.
Large Loss. The size of the loss must be meaningful from the perspective of the insured. Insurance premiums need to cover both the expected cost of losses, plus the cost of issuing and administering the policy, adjusting losses, and supplying the capital needed to reasonably assure that the insurer will be able to pay claims. For small losses these latter costs may be several times the size of the expected cost of losses. There is little point in paying such costs unless the protection offered has real value to a buyer.
Affordable Premium. If the likelihood of an insured event is so high, or the cost of the event so large, that the resulting premium is large relative to the amount of protection offered, it is not likely that anyone will buy insurance, even if on offer. Further, as the accounting profession formally recognizes in financial accounting standards, the premium cannot be so large that there is not a reasonable chance of a significant loss to the insurer. If there is no such chance of loss, the transaction may have the form of insurance, but not the substance. (See the U.S.
Financial Accounting Standards Board standard number 113)
Calculable Loss. There are two elements that must be at least estimable, if not formally calculable: the probability of loss, and the attendant cost. Probability of loss is generally an empirical exercise, while cost has more to do with the ability of a reasonable person in possession of a copy of the insurance policy and a proof of loss associated with a claim presented under that policy to make a reasonably definite and objective evaluation of the amount of the loss recoverable as a result of the claim.
Limited risk of catastrophically large losses. The essential risk is often aggregation. If the same event can cause losses to numerous policyholders of the same insurer, the ability of that insurer to issue policies becomes constrained, not by factors surrounding the individual characteristics of a given policyholder, but by the factors surrounding the sum of all policyholders so exposed. Typically, insurers prefer to limit their exposure to a loss from a single event to some small portion of their capital base, on the order of 5
percent. Where the loss can be aggregated, or an individual policy could produce exceptionally large claims, the capital constraint will restrict an insurer's appetite for additional policyholders. The classic example is earthquake insurance, where the ability of an underwriter to issue a new policy depends on the number and size of the policies that it has already underwritten. Wind insurance in hurricane zones, particularly along coast lines, is another example of this phenomenon. In extreme cases, the aggregation can affect the entire industry, since the combined capital of insurers and reinsurers can be small compared to the needs of potential policyholders in areas exposed to aggregation risk. In commercial fire insurance it is possible to find single properties whose total exposed value is well in excess of any individual insurer’s capital constraint. Such properties are generally shared among several insurers, or are insured by a single insurer who syndicates the risk into the reinsurance market.

Monday, August 10, 2009

flying car

modern car found in market

We've heard of endurance testing before, but we've never heard of engineers entering their latest steed in one of the most gruelling races on the planet. So CAR Online reader Alex Hild's shots of the new baby Rolls-Royce Ghost at the Tour de France raised a wry smile in CAR HQ.Alex caught the 2010 Rolls Ghost on Mont Ventoux in the south of France, two days before the race arrived. You can see a short video clip Alex scored at the foot of this page.'I was extremely surprised to see the Rolls on top of a mountain in southern France but I was also surprised at the lack of interest everybody had for the Ghost,' Alex told us. 'I was the only one running after it and taking pictures, however the people there were probably more interested in biking than cars. The driver spotted me taking pictures and his facial expression wasn't exactly joyful!'It looks rammed on that mountain pass. Hardly a subtle test location!Indeed not. At least Rolls' engineers had taken some precautions to disguise the new Ghost (although not as a pushbike).

flying car



Car" and "Cars" redirect here. For other uses, see Car (disambiguation).


Karl Benz's "Velo" model (1894) - entered into an early automobile race

Passenger cars in 2000

World map of passenger cars per 1000 people.
An automobile or motor car is a
wheeled motor vehicle used for transporting passengers, which also carries its own engine or motor. Most definitions of the term specify that automobiles are designed to run primarily on roads, to have seating for one to eight people, to typically have four wheels, and to be constructed principally for the transport of people rather than goods.[1] However, the term automobile is far from precise, because there are many types of vehicles that do similar tasks.
As of 2002, there were 590 million passenger cars worldwide (roughly one car per eleven people).
[2] Around the world, there were about 806 million cars and light trucks on the road in 2007; they burn over 260 billion gallons of gasoline and diesel fuel yearly. The numbers are increasing rapidly, especially in China and India