
V.N. Kostiuk The concept of complexity and nonstationarity of economic systems 

Abstract. The article is devoted to the study of the concept of nonstationary behavior in the modern economy. The difference between stationarity and nonstationarity is characterized by a specially defined concept of the state of the system being realized. It is assumed that the modern nonstationary economy, having reached a certain level of complexity, functions near nonlinear equilibrium. This article also examines the impact of increasing complexity on the development of the economic system. Keywords: system, stationarity, nonstationarity, complexity, equilibrium, stability, selforganized criticality, bifurcation. DOI: 10.14357/20790279180303 PP. 2735. References 1. Nikolis G., and Prigozhin I. 1979. Samoorganizatsiya v neravnovesnykh sistemakh [Selforganization in nonequilibrium systems]. Moscow: World Publs. 512 p. 2. Kostyuk V.N. 1996. Potentsial’naya real’nost’ [Potential Reality]. Sistemnyye issledovaniya. Metodologicheskiye problemy. Yezhegodnik 19921994. [System Studies. Methodological problems. Yearbook 19921994]. Moscow: URSS Publs. P. 115135. 3. Prigozhin I., and Stengers I. 2003. Vremya. Khaos. Kvant. K resheniyu paradoksa vremeni. [Time. Chaos. Quantum. To the solution of the paradox of time]. Moscow: URSS Publs. P. 5859. 4. Loskutov A. YU.2010. Ocharovaniye khaosa [Charm of chaos]. Uspekhi fizicheskikh nauk [Successes of physical sciences]. 180: 13051329. 5. Kuznetsov S.P. 2001. Dinamicheskiy khaos (kurs lektsiy) [Dynamic chaos (course of lectures)]. Moscow: Physical and mathematical literature Publs. 290 p. 6. Prigozhin I. 1991. Filosofiya nestabil’nosti [Philosophy of instability. Voprosy filosofii [Problems of Philosophy]. 6: 51. 7. Arnol’d V.I. 2009. Teoriya katastrof. [The theory of catastrophes] – 5th ed. Moscow: URSS. P. 8. 8. Bak P., Tang C., and Wiesenfeld K. 1988. Selforganized criticality. Phys. Rev. Vol. 38. No.1. PP. 364374. 9. Bak P., and Kan CH. 1991. Samoorganizovannaya kritichnost’ [Selforganized criticality]. V mire nauki [In the world of science]. 3: 1624. 10. Bak P. 1996. How Nature Works: The Science of SelfOrganized Criticality. N.Y.: Copernicus Publs. 212 p. 11. Akerlof Dzh. and Shiller R. 2010. Kak chelovecheskaya psikhologiya upravlyayet ekonomikoy [How human psychology manages the economy]. Moscow: Alpina Publs. 181 p.
