A discrete in time model of ideological competition is formulated taking into account population migration. The model is based on interactions between global populations of non-believers and followers of different ideologies. The complex dynamics of the attracting manifolds is investigated....

We investigate an economic system in which one large agent - the Japan government changes the environment of numerous smaller agents - the Japan agriculture producers by indirect regulation of prices of agriculture goods. The reason for this intervention was that before the oil crisis in 1974...

We investigate how the adaptation of the competition coefficients of the competing populations for the same limited resource influences the system dynamics in the regions of the parameter space, where chaotic motion of Shilnikov kind exists. We present results for two characteristic values of...

A model for ideological struggles is formulated. The underlying set is a closed one, like a country but in which the population size is variable in time. The dynamics of the struggle is described by model equations of Verhulst–Lotka–Volterra kind. Several “ideologies” compete to increase...

We investigate an economic system in which one large agent—the Japan government changes the environment of numerous smaller agents—the Japan agriculture producers by indirect regulation of prices of agriculture goods. The reason for this intervention was that before the oil crisis in 1974...

In the contemporary scientific and socio-political space the works of K. Marx are in total oblivion. Even more, during the whole 20th century in the Western countries, and lately in the Eastern ones, he is anathematized politically and scientifically as an evil spirit. And still - is the...

In the contemporary scientific and socio-political space the works of K. Marks are in total oblivion. Even more, during the whole 20th century in the Western countries, and lately in the Eastern ones, he is anathematized politically and scientifically as an evil spirit. And still - is the...

In the “new economy” based on knowledge, the science-innovation policy of the state plays a primary and key role. An attempt is made to analyze and generalize at generally valid (principle) level this policy in USA, EC and Bulgaria as a specific element of the qualitatively new model of...

REFERENCE to: Íèêîëà Âúë÷åâ, Ëþäìèë Ïåòêîâ. Èíâåñòèöèèòå â áúëãàðñêîòî çåìåäåëèå (N. Valchev, L. Petkov. Investments in Bulgarian Agriculture). Sofia: ÀÈ “Ïðîô. Ìàðèí Äðèíîâ”, 2006, 176 p.