In five pages externalities are defined and explained in a consideration of how they may create market failure or inefficacies with the government's intervention role also discussed.  Seven sources are listed in the bibliography.
                                    
  
                                    
                                     Name of Research Paper File: TS14_TEextern.rtf
                                    
                                    
                                        
                                            
                                                    Unformatted Sample Text from the Research Paper: 
                                                    
                                                
                                                    intervention is seen will vary, but a time of market failure is more likely to see intervention than market buoyancy. Market failure may occur due to a variety of reasons,   
                                                
                                                    these are usually classified as public goods, market power equity considerations and externalities. Externalities are arguable one of the least understood factors however, to understand how a government may seek   
                                                
                                                    to intervene where this is a source of market failure, the cause has to be perceived to effect a suitable response. There have been many attempts at defining what is   
                                                
                                                    meant by an externality. This is seen when there is a divergence between the private and the social cost. This means that there is a divergence of the cost that   
                                                
                                                    borne by the parties to the contract and the cost that is borne by society; those not party to the contract. Pigou in his 1932 work The Economics of Welfare   
                                                
                                                    gave a rather clumsy explanation, but it is still valuable with an externality described as "one person A, in the course of rendering some service, for which payment is made,   
                                                
                                                    to a second person B, incidentally also renders services or disservices to other persons (not producers of like services), of a sort that payment cannot be extracted from the benefited   
                                                
                                                    parties or compensation enforced on behalf of the injured parties" (Pigou and Aslanbeigui, 2001). A clearer definition my be seen as "an externality is present whenever the well-being of a   
                                                
                                                    consumer or the production possibilities of a firm are directly affected by the action of another agent in the economy. (Hindriks , 2001). 	This means that externalities may be seen   
                                                
                                                    as effects of the production of goods, or their consumption on third parties and which realise uncompensated (Pigou and Aslanbeigui, 2001). In simple terms is id the effect on actions