Exogenous Versus Endogenous for Chaotic Business Cycles
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Volume 5 ISSN 2164‐6376 (print) Issue 2 ISSN 2164‐6414 (online) June 2016 An Interdisciplinary Journal of Discontinuity, Nonlinearity, and Complexity Discontinuity, Nonlinearity, and Complexity Editors Valentin Afraimovich Lev Ostrovsky San Luis Potosi University, IICO-UASLP, Av.Karakorum 1470 Zel Technologies/NOAA ESRL, Boulder CO 80305, USA Lomas 4a Seccion, San Luis Potosi, SLP 78210, Mexico Fax: +1 303 497 5862 Fax: +52 444 825 0198 Email: [email protected] Email: [email protected] Xavier Leoncini Dimitry Volchenkov Centre de Physique Théorique, Aix-Marseille Université, CPT The Center of Excellence Cognitive Interaction Technology Campus de Luminy, Case 907 Universität Bielefeld, Mathematische Physik Universitätsstraße 13288 Marseille Cedex 9, France 25 D-33615 Bielefeld, Germany Fax: +33 4 91 26 95 53 Fax: +49 521 106 6455 Email: [email protected] Email: [email protected] Associate Editors Marat Akhmet Ranis N. 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Discontinuity, Nonlinearity, and Complexity 5(2) (2016) 101–119 Discontinuity, Nonlinearity, and Complexity https://lhscientificpublishing.com/Journals/DNC-Default.aspx Exogenous Versus Endogenous for Chaotic Business Cycles Marat Akhmet1,†, Zhanar Akhmetova2, Mehmet Onur Fen1 1Department of Mathematics, Middle East Technical University, 06800, Ankara, Turkey 2Department of Economics, Australian School of Business, University of New South Wales, Sydney, NSW 2052, Australia Submission Info Abstract Communicated by Valentin Afraimovich We propose a novel approach to generate chaotic business cycles in a de- Received 19 May 2015 terministic setting. Rather than producing chaos endogenously, we con- Accepted 8 June 2015 sider aggregate economic models with limit cycles and equilibriums, sub- Available online 1 July 2016 ject them to chaotic exogenous shocks and obtain chaotic cyclical motions. Thus, we emphasize that chaotic cycles, which are inevitable in economics, are not only interior properties of economic models, but also can be consid- Keywords ered as a result of interaction of several economical systems. This provides a comprehension of chaos (unpredictability, lack of forecasting) and control Business cycle models of chaos as a global economic phenomenon from the deterministic point of Exogenous shocks view. Period-doubling cascade We suppose that the results of our paper are contribution to the mixed Attraction of chaotic cycles exogenous-endogenous theories of business cycles in classificationbyP.A. Chaotic business cycle Samuelson [1]. Moreover, they demonstrate that the irregularity of the ex- tended chaos can be structured, and this distinguishes them from the gen- eralized synchronization. The advantage of the knowledge of the structure is that by applying instruments, which already have been developed for de- terministic chaos, one can control the chaos, emphasizing a parameter or a type of motion. For the globalization of cyclic chaos phenomenon we utilize new mechanisms such as entrainment by chaos, attraction of chaotic cycles by equilibriums and bifurcation of chaotic cycles developed in our earlier papers. ©2016 L&H Scientific Publishing, LLC. All rights reserved. 1 Introduction Business cycles are a commonly accepted phenomenon in economics. However, we do not actually observe perfectly periodic motions in economic variables. Instead,