Limitations of stabilizing effects of fundamentalists: facing positive feedback traders

The authors analyze financial interactions between chartists with bounded leverage and fundamentalists within a heterogeneous agent model, focusing on the role of fundamentalists to stabilize prices. While many related studies are solely based on simulations, the authors analytically prove that the...

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Main Authors: Baumann Michael Heinrich, Baumann Michaela, Erler Alexander
Format: Article
Language:English
Published: De Gruyter 2019-12-01
Series:Economics: Journal Articles
Subjects:
Online Access:https://doi.org/10.5018/economics-ejournal.ja.2019-44
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author Baumann Michael Heinrich
Baumann Michaela
Erler Alexander
author_facet Baumann Michael Heinrich
Baumann Michaela
Erler Alexander
author_sort Baumann Michael Heinrich
collection DOAJ
description The authors analyze financial interactions between chartists with bounded leverage and fundamentalists within a heterogeneous agent model, focusing on the role of fundamentalists to stabilize prices. While many related studies are solely based on simulations, the authors analytically prove that the existence of fundamentalists is insufficient to avoid asset price bubbles for a certain setup of a feedback trader model. Moreover, similar studies very often face the criticism that chartists might run out of money before the emergence of bubbles, as these studies typically analyze the role of chartists with unbounded leverage. In the work at hand, however, the authors prove that even in an environment where chartists have limited access to finance, their investment behavior can lead to exploding prices. The chartists under study are so-called positive feedback traders, whose leverage is bounded. Additionally, the authors derive upper boundaries for positive feedback traders’ initial investment necessary to avoid exploding prices. In order to stabilize stock/asset markets, intervention measures might be helpful.
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spelling doaj.art-a1db9b76a7ed421eafbc9959d2321eca2022-12-22T01:22:41ZengDe GruyterEconomics: Journal Articles1864-60422019-12-0113110.5018/economics-ejournal.ja.2019-44Limitations of stabilizing effects of fundamentalists: facing positive feedback tradersBaumann Michael Heinrich0Baumann Michaela1Erler Alexander2Department of Mathematics and Department of Economics, University of Bayreuth, GermanyUniversity of Bayreuth,GermanyUniversity of Bayreuth,GermanyThe authors analyze financial interactions between chartists with bounded leverage and fundamentalists within a heterogeneous agent model, focusing on the role of fundamentalists to stabilize prices. While many related studies are solely based on simulations, the authors analytically prove that the existence of fundamentalists is insufficient to avoid asset price bubbles for a certain setup of a feedback trader model. Moreover, similar studies very often face the criticism that chartists might run out of money before the emergence of bubbles, as these studies typically analyze the role of chartists with unbounded leverage. In the work at hand, however, the authors prove that even in an environment where chartists have limited access to finance, their investment behavior can lead to exploding prices. The chartists under study are so-called positive feedback traders, whose leverage is bounded. Additionally, the authors derive upper boundaries for positive feedback traders’ initial investment necessary to avoid exploding prices. In order to stabilize stock/asset markets, intervention measures might be helpful.https://doi.org/10.5018/economics-ejournal.ja.2019-44heterogeneous agentsfeedback tradingfundamentalistschartiststrend followersfinancial bubblesfinancial crisisd84g01g11
spellingShingle Baumann Michael Heinrich
Baumann Michaela
Erler Alexander
Limitations of stabilizing effects of fundamentalists: facing positive feedback traders
Economics: Journal Articles
heterogeneous agents
feedback trading
fundamentalists
chartists
trend followers
financial bubbles
financial crisis
d84
g01
g11
title Limitations of stabilizing effects of fundamentalists: facing positive feedback traders
title_full Limitations of stabilizing effects of fundamentalists: facing positive feedback traders
title_fullStr Limitations of stabilizing effects of fundamentalists: facing positive feedback traders
title_full_unstemmed Limitations of stabilizing effects of fundamentalists: facing positive feedback traders
title_short Limitations of stabilizing effects of fundamentalists: facing positive feedback traders
title_sort limitations of stabilizing effects of fundamentalists facing positive feedback traders
topic heterogeneous agents
feedback trading
fundamentalists
chartists
trend followers
financial bubbles
financial crisis
d84
g01
g11
url https://doi.org/10.5018/economics-ejournal.ja.2019-44
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