Stock price manipulation: The role of intermediaries

Artikel

We model a scenario in which there are three types of investors: fundamentalists, speculators, and trend-followers and an intermediary who cares about his reputation. Fundamentalists are rational investors with long horizons who are interested in the dividend stream. Speculators are rational investors who have short horizons and are interested in profiting from short-term price movements or capital gains. Trend-followers are behavioral investors who extrapolate price trends, and, consequently, are late entrants in the market. We show that an informed intermediary (broker) can manipulate demand (consequently stock price) without losing his reputation when there is information asymmetry. We also show that there is a trade-off between broker level competition for reputation and market liquidity. Broker level competition checks manipulation, but it adversely affects market liquidity.

Object Details

• Language: Englisch

References and Relationships

• Bibliographic citation: Journal: International Journal of Financial Studies ; ISSN: 2227-7072 ; Volume: 5 ; Year: 2017 ; Issue: 4 ; Pages: 1-12 ; Basel: MDPI

Classification and Topics

• Classification: Wirtschaft ; Noncooperative Games ; Information, Knowledge, and Uncertainty: General ; General Financial Markets: General (includes Measurement and Data) ; Financial Institutions and Services: General
• Subject: stock price manipulation ; broker manipulation ; broker competition ; heterogeneous investors ; fundamentalists ; speculators ; trend-follower

Contributors, Places and Time

• Event: Geistige Schöpfung
• (who): Siddiqi, Hammad
• Event: Veröffentlichung
• (who): MDPI
• (where): Basel
• (when): 2017

Further information

• DOI: doi:10.3390/ijfs5040024
• Handle: http://hdl.handle.net/10419/195658
• Last update: 10.03.2025, 11:43 AM CET