An externality exists whenever a transaction creates a cost or a benefit for a party not directly involved. Pollution …, such as smoke emitted into the air or sewage poured into the water is an externality. In this paper I analyze the …-classicals are concerned about efficiency and they propose some forms of government intervention in order to alleviate pollution …

the urban areas’ environmental regulations, is due to generate uncontrollable pollution centers, placed just nearby towns …

of pollution is directly related with cancer mortality. And one of the most common causes for cancer, especially for …