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| quote: | Originally posted by occrider
Just to add to your point slightly, market failures encompass far more than simple natural monopolies, although that's probably the best example to use. Other easy examples include the need for regulatory agencies to ensure good corporate governance, meeting fiduciary responsiblities, and ensuring fair and equal access to information, or in other words, prohibiting profit taking from insider information.
This example was kinda raised before but in general, another market failure are public goods or commodities that are nonrival in consumption. These are namely goods that from which one person consumes, it does not prevent anyone else from doing so as well. You can use a defense force as an easy example, however, there are a multitude of other such public goods such parks, sanitation services, roads, education, etc. Social efficiency is maximized with the existence of these goods, however, these goods fail to materialize in free markets due to problems of freeriding.
Another good example of a market failure are negative externalities. They usually appear as a consequence of the failure to establish property rights. Let's use a river for example. Nobody owns a river, or the function of the river, but suppose a factory owner upstream pollutes in the river which affects the livlihood of a fisherman downstream. While the factory owner should pay a price that reflects the river's value as a scarce resource that can be used for other activities, he instead pays 0 price. If one person owned the entire river, they could attain the social optimum of balancing the cost fo pollution with the the other utilities wrought from the river, however, since noone owns the water or the air within which we breath these costs cannot be leveraged. As such, private markets need not produce the socially efficient output level.
Anyway, I loved public finance . |
To further your point on externalities public goods actually encompass positive externalities, and that's why they're underproduced..
lol, I aced public finance too btw 
Anyway, i generalised externalities to fall under the concept of market failure, so I conviniently left them out so as to not get too techinical.
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