The article deals with Mill's views on methodology. The place taken by political economy in the general classification of knowledge is shown. This includes: natural distinction between physical and moral sciences (including non-reducibility of mental phenomena to physical phenomena) and...

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...