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News Reaction in Financial Markets within a Behavioral Finance Model with Heterogeneous Agents

Fischer, Thomas (2011)
News Reaction in Financial Markets within a Behavioral Finance Model with Heterogeneous Agents.
Report, Erstveröffentlichung

Kurzbeschreibung (Abstract)

This paper presents a Heterogeneous Agent Model of a financial market with chartist and fundamentalist traders that exhibit bounded rationality and short-term thinking to explain the effect of under and overreaction to news. The existence of the Market Maker's finite price adjustment speed leads to the fact that prices do not adjust instantaneously to new information. Chartists use moving average rules to make their investment decisions. Chartist can transform an underreaction-only scenario into a market with overreaction. The use of long moving average rules might even make the market unstable. Furthermore, noise in financial markets can lead to long time decoupling from fundamental value. Higher market efficiency (low deviations from fundamental value), on the other hand, is achieved if high rationality and long-term thinking for the agents is assumed.

Typ des Eintrags: Report
Erschienen: 2011
Autor(en): Fischer, Thomas
Art des Eintrags: Erstveröffentlichung
Titel: News Reaction in Financial Markets within a Behavioral Finance Model with Heterogeneous Agents
Sprache: Englisch
Publikationsjahr: 1 September 2011
Ort: Darmstadt
Reihe: Darmstadt Discussion Papers in Economics
Band einer Reihe: 205
URL / URN: http://tuprints.ulb.tu-darmstadt.de/4721
Kurzbeschreibung (Abstract):

This paper presents a Heterogeneous Agent Model of a financial market with chartist and fundamentalist traders that exhibit bounded rationality and short-term thinking to explain the effect of under and overreaction to news. The existence of the Market Maker's finite price adjustment speed leads to the fact that prices do not adjust instantaneously to new information. Chartists use moving average rules to make their investment decisions. Chartist can transform an underreaction-only scenario into a market with overreaction. The use of long moving average rules might even make the market unstable. Furthermore, noise in financial markets can lead to long time decoupling from fundamental value. Higher market efficiency (low deviations from fundamental value), on the other hand, is achieved if high rationality and long-term thinking for the agents is assumed.

Freie Schlagworte: Heterogeneous Agent Model - stock market - under and overreaction to news - moving average rules - financial stability
URN: urn:nbn:de:tuda-tuprints-47213
Zusätzliche Informationen:

JEL classification: G14 - D84 - C62 - C15

Sachgruppe der Dewey Dezimalklassifikatin (DDC): 300 Sozialwissenschaften > 330 Wirtschaft
Fachbereich(e)/-gebiet(e): 01 Fachbereich Rechts- und Wirtschaftswissenschaften
01 Fachbereich Rechts- und Wirtschaftswissenschaften > Volkswirtschaftliche Fachgebiete
01 Fachbereich Rechts- und Wirtschaftswissenschaften > Volkswirtschaftliche Fachgebiete > Fachgebiet Makroökonomie und Finanzmärkte
Hinterlegungsdatum: 31 Jan 2016 20:57
Letzte Änderung: 29 Mai 2016 21:18
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