Özet:

Real or judicial person’s production or consumption decisions affect other individual or establishments utility or costs positively or negatively called as externalities. When negative impacts resulting from any production or consumption decisions affected other decision units, external costs were mentioned. Ecological pollution which is negative externality may cause external costs. The main components of ecological pollution which have been seen in Muğla district was air pollution. When Yatağan Power Plant which provides important part of electricity demand of Ege region was put into use beginnig from 1983, public opinion always make a response for emissions effects on environment and public health. The aim of this paper is to determine the real added value of Yatağan Thermal Power Plant which was the main nagative externality component in the region. For this purpose, depending on negative externalities, external costs which was caused by thermal power plant examines. These external costs determines as sag in price of real estate in region, fall in fertility of agricultural lands, the pollution of water resources and health problems of community in region. Furthermore, relating to internalizing the negative externalities which were created by power plant, economic approaches in literature are analyzing within market economy solutions and public economy solutions and introduce resolution advisories about internalizing externalities.

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