Moral hazard
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Moral hazard is the prospect that a party insulated from risk may
behave differently, for example, that an insured party's behaviour will
be more risky than it would without the insurance. Moral hazard arises
because an individual or institution does not bear the full consequences
of its actions, and therefore has a tendency to act less carefully than
it otherwise would, leaving another party to bear some responsibility
for the consequences of those actions.

For example, an individual with insurance against automobile theft may
be less vigilant about locking his car, because the negative
consequences of automobile theft are (partially) borne by the insurance
company.

Moral hazard is related to asymmetric information, a situation in which
one party in a transaction has more information than another. A special
case of moral hazard is called a principal-agent problem, where one
party, called an agent, acts on behalf of another party, called the
principal. The agent usually has more information about his actions or
intentions than the principal does, because the principal usually cannot
perfectly monitor the agent. The agent may have an incentive to act
inappropriately (from the view of the principal) if the interests of the
agent and the principal are not aligned.

Contents [hide]
1 Moral hazard in finance
2 Moral hazard in insurance
3 See also
4 References
5 External links



[edit] Moral hazard in finance
Financial bail-outs of lending institutions by governments, central
banks or other institutions can encourage risky lending in the future,
if those that take the risks come to believe that they will not have to
carry the full burden of losses. Lending institutions need to take risks
by making loans, and usually the most risky loans have the potential for
making the highest return. A moral hazard arises if lending institutions
believe that they can make risky loans that will pay handsomely if the
investment turns out well but they will not have to fully pay for losses
if the investment turns out badly. Taxpayers, depositors, other
creditors have often had to shoulder at least part of the burden of
risky financial decisions made by lending institutions.[1]

Moral hazard can also occur with borrowers. Borrowers may not act
prudently (in the view of the lender) when they invest or spend funds
recklessly. For example, credit card companies often limit the amount
borrowers can spend using their cards, because without such limits those
borrowers may spend borrowed funds recklessly, leading to default.


[edit] Moral hazard in insurance
In insurance markets, moral hazard refers to the case where the
existence of the insurance changes the behaviour of the insured party,
since the insured party no longer bears the full costs of that
behaviour. For example, after purchasing automobile insurance, some may
tend to be less careful about locking the automobile or choose to drive
more, thereby increasing the risk of theft or an accident for the
insurance company. After purchasing fire insurance, some may tend to be
less careful about preventing fires (say, by smoking in bed or
neglecting to replace the batteries in fire alarms).

Before purchasing medical insurance, some may be more careful about
maintaining their health through their own actions because they must
bear the full financial cost of health care, and by implication, after
purchasing medical insurance, may be less careful about maintaining
their health. For example, an obese person has an additional incentive
to lose weight if he believes that he must pay for any health care costs
resulting from his unhealthy condition.

Deductibles, copayment, and coinsurance reduce the risk of moral hazard
since the insured have a financial incentive to avoid making a claim.

Moral hazard has been studied by insurers[2] and academics. See works
by Kenneth Arrow[3] and Tom Baker.[4]


[edit] See also
Perverse incentive
Unintended consequence
Free rider problem
Conflict of interest
Adverse selection
Feedback
Offset hypothesis

[edit] References
^ http://www.ft.com/cms/s/0/5ffd2606-69e8-11dc-a571-0000779fd2ac.html
Lawrence Summers, "Beware moral hazard fundamentalists", Financial
Times, September 23, 2007.
^ Everett Crosby, "Fire Prevention", in Annals of the American Academy
of Political and Social Science, Vol 26 Insurance pp224-238, Sept 1905.
[1] Crosby was one of the founders of the National Fire Protection
Association.[2]
^ Kenneth Arrow
"Uncertainty and the Welfare Economics of Medical Care" (AER, 1963)
Aspects of the Theory of Risk Bearing (1965)
Essays in the Theory of Risk- Bearing (1971)
^ Tom Baker, "On the Genealogy of Moral hazard", Texas Law Review,
December 1996, 75 Tex. L. Rev. 237

[edit] External links
Discussion of moral hazard and insurance by Robert Schenk
Moral hazard and risk
The Moral Hazard Myth (in Healthcare)
Moral hazard and health care
Moral hazard and Bataan Power Plant
The Moral Hazard Myth
Retrieved from "http://en.wikipedia.org/wiki/Moral_hazard";

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