title: Capital accumulation, aspiration adjustment, and population growth:  limit cycles in an Easterlin-type model.
abstract: "One of the recent interesting hypotheses of population growth is due to Easterlin who suggests the possibility of self-generating fluctuations in birth numbers.  The present paper tries to answer the question whether feedback mechanisms produce persistent oscillations in population growth.  A system of two nonlinear differential equations for the per capita capital stock and the aspiration level is studied by a phase portrait analysis.  Using the Poincare-Bendixson theorem we derive sufficient conditions for the existence of a stable limit cycle." (SUMMARY IN FRE)
authors.forename: G
authors.initials: G
authors.lastname: Feichtinger
authors.forename: G
authors.initials: G
authors.lastname: Sorger
mesh_terms: D003710:Demography; D004467:Economics; D005376:Financial Management; D005583:Fourier Analysis; D007449:Investments; D008962:Models, Theoretical; D011153:Population; D011157:Population Dynamics; D011158:Population Growth; D012106:Research; D013223:Statistics as Topic
keywords: Capital; Cyclic Analysis; Demographic Factors; Easterlin Hypothesis; Economic Factors; Estimation Technics; Financial Activities; Investments; Macroeconomic Factors; Mathematical Model; Microeconomic Factors; Models, Theoretical; Population; Population Dynamics; Population Growth; Research Methodology; World