This article shows that the altruism of the donator could have different forms. The specific form of his optimisation criterion significantly influences his decision making concerning the allocation of his resources among recipients. Moreover, even within one chosen criterion we could report...

In this article two original microeconomic models of an externality market are described: (1) model of optimal financial compensation of a damage caused by a negative externality in the economy with agents maximizing probability of their survival (generalized Coase Theorem) and (2) generalized...