Titlebook: Economic Evolution and Demographic Change; Formal Models in Soc Günter Haag,Ulrich Mueller,Klaus G. Troitzsch Book 1992 Springer-Verlag Ber

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A chaotic process with slow feed back: The case of business cycles− .)Y., was assumed proportional to income, a given fraction being saved. Finally, income was generated by consumption and investments: .. = .. + ... Substituting for consumption and investments a very simple recursive relation of the second order was obtained: .. = (1 + . − .)... − ....

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Aspects of Memory Conversion Projects,enses!), like a Pierre-Louis Moreau de Maupertuis measuring the Terrestrial meridian, the relationships have been constant and diverse. Since about the middle of the XIXth century, when it emerged as an institutionalized discipline, geography has a long tradition of borrowing concepts and mathematical models from physical sciences.

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Geography, Physics and Synergeticsenses!), like a Pierre-Louis Moreau de Maupertuis measuring the Terrestrial meridian, the relationships have been constant and diverse. Since about the middle of the XIXth century, when it emerged as an institutionalized discipline, geography has a long tradition of borrowing concepts and mathematical models from physical sciences.

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Nonlinear Interactions in the Economyndustrial production, raw materials consumption, and foreign trade, he argued for the existence of a 50- to 60-year cyclic motion, presumably associated with the wearing out and replacement of fixed capital.

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Explanation of Residential Segregation in one City. The Case of Cologneerent ethnic groups) reside. In ecology there are at least two rivals who compete for a valued object, e.g. a prey. The same holds true for social ecology with respect to human beings. In the latter case the “prey” could be a desired flat in a desired quarter of the city.

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Birth Control as a Social Dilemmaldren without any negative effect on her remaining age specific fecundity or her longevity (Voland and Engel 1989, with further references). But not only in modern, also in very primitive societies human couples reproduce well below the physiological maximum.