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:[B]y directing that industry in such a manner as its produce may be of the greatest value, he intends only his own gain, and he is in this, as in many other cases, led by an invisible hand to promote an end which was no part of his intention. Nor is it always the worse for the society that it was not part of it. '''By pursuing his own interest he frequently promotes that of the society more effectually than when he really intends to promote it.''' I have never known much good done by those who affected to trade for the public good.  

:[B]y directing that industry in such a manner as its produce may be of the greatest value, he intends only his own gain, and he is in this, as in many other cases, led by an invisible hand to promote an end which was no part of his intention. Nor is it always the worse for the society that it was not part of it. '''By pursuing his own interest he frequently promotes that of the society more effectually than when he really intends to promote it.''' I have never known much good done by those who affected to trade for the public good.  

However, [[Game Theory]] suggests that this is not always true - in some circumstances each individual acting in their own self-interest does not result in the socially optimal outcome.

However, [[game theory]] suggests that this is not always true - in some circumstances each individual acting in their own self-interest does not result in the socially optimal outcome.

== References ==

== References ==