Three original microeconomic models of an externality market are described: (1) model of the marketable permits for exhalations emission, (2) model of optimal financial satisfaction of a damage caused by a negative externality in the economy with agents maximizing probability of their survival...

Brownfields are old, unused sites and buildings located in urban areas and open countryside. This article deals with problems of brownfields that developed as a result of restructuring national industry, a decreased significance of primary and secondary industry, and the increase of tertiary...