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Heterogeneous agent models in economics and finance
Hommes, Cars H. - 2005
This paper surveys work on dynamic heterogeneous agent models (HAMs) in economics and finance. Emphasis is given to simple models that, at least to some extent, are tractable by analytic methods in combination with computational tools. Most of these models are behavioral models with boundedly...
Persistent link: https://www.econbiz.de/10011343261
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More hedging instruments may destablize markets
Brock, William A.; Hommes, Cars H.; Wagener, Florian … - 2008
This paper formalizes the idea that more hedging instruments may destabilize markets when traders are heterogeneous and adapt their behavior according to experience based reinforcement learning. We investigate three different economic settings, a simple mean-variance asset pricing model, a...
Persistent link: https://www.econbiz.de/10011349702
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Shallow lake economics run deep : nonlinear aspects of an economic-ecological interest conflict
Wagener, Florian Oskar Ottokar - 2009
Persistent link: https://www.econbiz.de/10003850880
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Shallow lake economics run deep : nonlinear aspects of an economic-ecological interest conflict
Wagener, Florian Oskar Ottokar - 2011
Outcomes of the shallow lake interest conflict are presented in a number of different contexts: quasi-static and dynamic social planning, and quasi-static one-shot and repeated non-cooperative play. As the underlying dynamics are non-convex, the analysis uses geometrical-numerical methods: the...
Persistent link: https://www.econbiz.de/10011378127
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A weak bifurcation theory for discrete time stochastic dynamical systems
Diks, Cees G. H.; Wagener, Florian Oskar Ottokar - 2006
This article presents a bifurcation theory of smooth stochastic dynamical systems that are governed by everywhere … of the system. By introducing a weak equivalence notion of these dependence ratios, we arrive at a bifurcation theory for … which in the compact case, the set of stable (non-bifurcating) systems is open and dense. The theory is illustrated with …
Persistent link: https://www.econbiz.de/10011349208
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Resilience: an evolutionary approach to spatial economic systems
Reggiani, Aura; Graaff, Thomas de; Nijkamp, Peter - 2001
The concept of resilience has received a great deal of attention in the past decades. Starting fromthe first fundamental definitions offered by Holling, Pimms and Perrings in an economic-ecologicalmodeling context, the present paper explores the ‘evolution’ of the resilience concept – as...
Persistent link: https://www.econbiz.de/10011318583
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Heterogeneous agent models : two simple case studies
Hommes, Cars H. - 2005
Persistent link: https://www.econbiz.de/10002902530
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Heterogeneous agent models in economics and finance
Hommes, Cars H. - 2005
Persistent link: https://www.econbiz.de/10002902552
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Resilience : an evolutionary approach to spatial economic systems
Reggiani, Aura; Graaff, Thomas de; Nijkamp, Peter - 2001
Persistent link: https://www.econbiz.de/10001616977
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Heterogeneous agent models : two simple case studies
Hommes, Cars H. - 2005
These notes review two simple heterogeneous agent models in economics and finance. The first is a cobweb model with rational versus naive agents introduced in Brock and Hommes (1997). The second is an asset pricing model with fundamentalists versus technical traders introduced in Brock and...
Persistent link: https://www.econbiz.de/10011343262