In this paper, we review the basic notions and definitions of economic regime and regime switching. The purpose of this review is to describe how these notions appear implicitly or explicitly in different areas of the economic literature. We will not claim to offer a complete survey. The goal is...

In this paper we show that in a pure exchange economy where social weights and total resources are fixed there is no possibility to improve the social welfare by means of efficient reallocations of the resources. However, if social weights are not fixed but can be selected from a particular set,...

In this paper from the Negishi approach we analyze the concepts of structurally stable and structurally unstable economies on Banach's spaces. With this object we formalize the intuitive concept of similar economies. We show that in certain cases similar (or neighboring) economies can show no...