The main task of this work is to develope a model able to encompass, at the same time, Keynesian, demand-driven, and Marxian, profit-driven determinants of fluctuations. Our starting point is the Goodwin's model (1967), rephrased in discrete time and extended by means of a coupled dynamics...

This paper embeds a wide-angled overview of the process of change, spanning the evolution of the species to the modern human-centered period. The model is based on the central proposition that change ensues from the supply-demand interaction between disorder and order, chaos and complexity....

This paper examines urbanization trends, the growth of Colombo and its present state of development. It looks at the approaches to the planned interventions in the city and demonstrates how a uni-directional urban development has had a detrimental impact upon healthy growth and quality of life...