In this paper, we discuss the models of continuous dynamics on the 2-simplex that arise when different qualitative restrictions are imposed on the (continuous) functions that generate the dynamics on the 2-simplex. We consider three types of qualitative restrictions: inequality (or...

The three-sector framework (related to agriculture, manufacturing, and services) is one of the major concepts for studying the long-run change of the economic structure. We discuss the system-theoretical classification of the structural change phenomenon and, in particular, the applicability of...