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Externalities of production - This article relates to how environmental disasters lead to a  negative externalaty

Walmart is considered to be the business number one in the world, in terms of revenue. However, from this article you can clearly see how their behavior towards stakeholders is really unethical. Many other articles also talk about how they treat their employees. This makes it clear that there is a negative externalize involved with this business. 

This article relates to externalities of production, since air pollution caused by industries and transport emissions is classified to be carcinogenic to humans and raises the risk for illness. The harmful effect the industries make, causes a negative externality upon the third party- the society breathing in polluted air, who indirectly receives an extra cost by the pollution.

This article states that air pollution is the main cause of cancer. In terms of economics, this means that it is an external cost of production received in consumption - as the process of recovering from cancer is very costly.

This article talks about how the number of children submitted to hospital with asthma has decreased by 12% after smoking bans were put in place. This shows that the externality created by smoking is negative, it does not only affect the individual but the society as well therefore the social costs are greater than the private benefits. It shows how government intervention helps reduce the negative externalities.

The article: http://www.bbc.co.uk/news/health-21067532 This article talks about how the "number of children admitted to hospital with severe asthma" has decreased by 12% in the first year after the ban on smoking in public places. It is also thought that people are opting for smoke - free homes as well, further reducing the negative externalities of smoking.

This article describes how processed food and fast food have many negative externalities which in the end makes them cost more than organic foods which are more expensive in the stores. Processed foods may be cheaper than organic food, however the pollution during the process of producing the food, the health problems involved and the low wages which are unpaid for are all consequences which in the end will make these foods cost more.

This article explains how the utilisation of Structural Adjustment Policies in developing African countries is failing to bring about the growth they are claimed to achieve. SAP's were designed to achieve economic diversification and reduce poverty among other things but the author of this article argues that they have not achieved any of these any of these aims. SAP's are an example of government intervention in a market to prevent negative externalities.

I found this article interesting even if it still has to do with microeconomics. I tals about the meat monopolistic competition in U.S. that is more of a monopoly than a perfect competition. It describes how the monopoly have negative externalitites because of poor animal treatment and conludes by stating that the market should become more competitive and differentiated.

I found this article very interesting because it has to do with externalities and common goods. I think this article may be associated with the article "Trajedy of the Commons" which we read because instead of talking of men's overconsumption of grass lands, it talks about the overcosumption of the ocean's self-purifying system. Generally, when talking about production of electricity through fission power plants, there will be unusable waste that is highly harmful for men and the environment because it emits highly ionizing radiation. But producers of that energy simply throw that waste in the oceans and wash their hands of the problem. The cost of society for that energy is equal to the producer's cost plus the cost for that damage the nuclear waste does. The marginal social cost is greater then the marginal private cost. But since, in a free market, it the private who determines the quantity consumed, there will be too much nuclear electricity produced with respect to society. "too much" means that resources are not optimally allocated and therefore there is a market failure.

When free markets do not maximise society's welfare, they are said to 'fail' and policy intervention may be needed to correct them. Many economists have described climate change as an example of a market failure - though in fact a number of distinct market failures have been identified.