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Forward and backward dynamics in implicitly defined overlapping generations models
[Zeitschriftenartikel]
Abstract In dynamic economic models derived from optimization principles, the forward equilibrium dynamics may not be uniquely defined, while the backward dynamics is well defined. We derive properties of the global forward equilibrium paths based on properties of the backward dynamics. We propose the framewor... mehr
In dynamic economic models derived from optimization principles, the forward equilibrium dynamics may not be uniquely defined, while the backward dynamics is well defined. We derive properties of the global forward equilibrium paths based on properties of the backward dynamics. We propose the framework of iterated function systems (IFS) to describe the set of forward equilibria and apply the IFS framework to a one-and a two-dimensional version of the overlapping generations (OLG)-model. We show that if the backward dynamics is chaotic and has a homo-clinic orbit (a "snap-back repeller"), the set of forward equilibrium paths converges to a fractal attractor. Forward equilibria may be interpreted as sunspot equilibria, where a random sunspot sequence determines equilibrium selection at each date.... weniger
Thesaurusschlagwörter
Chaos
Klassifikation
Wirtschaftsstatistik, Ökonometrie, Wirtschaftsinformatik
Volkswirtschaftslehre
Freie Schlagwörter
E32; C62; C02; Forward and backward dynamics; Homoclinic orbit; Snap-back repellor; Sunspot equilibria; Overlapping generations models
Sprache Dokument
Englisch
Publikationsjahr
2009
Seitenangabe
S. 110-129
Zeitschriftentitel
Journal of Economic Behavior & Organization, 71 (2009) 2
DOI
https://doi.org/10.1016/j.jebo.2008.09.010
Status
Postprint; begutachtet (peer reviewed)
Lizenz
PEER Licence Agreement (applicable only to documents from PEER project)