Arbitrage and Beliefs

Arbeitspapier

We study a segmented-markets setting in which self-fulfilling volatility can arise. The only requirements are (i) asset price movements redistribute wealth across markets (e.g., equities rise as bonds fall) and (ii) some stabilizing force keeps valuation ratios stationary (e.g., cash flow growth rises when valuations rise). We prove that when self-fulfilling volatility exists, arbitrage opportunities must also exist. Conversely, at times when arbitrage profits exist, asset markets are susceptible to self-fulfilling fluctuations. The tight theoretical connection between price volatility and arbitrage is detectable in currency markets by studying deviations from covered interest parity.

Object Details

• Language: Englisch

References and Relationships

• Bibliographic citation: Series: CESifo Working Paper ; No. 8490

Classification and Topics

• Classification: Wirtschaft ; Expectations; Speculations ; Portfolio Choice; Investment Decisions ; Asset Pricing; Trading Volume; Bond Interest Rates
• Subject: limits to arbitrage ; segmented markets ; volatility ; self-fulfilling prices ; multiple equilibria ; covered interest parity

Contributors, Places and Time

• Event: Geistige Schöpfung
• (who): Khorrami, Paymon ; Zentefis, Alexander K.
• Event: Veröffentlichung
• (who): Center for Economic Studies and Ifo Institute (CESifo)
• (where): Munich
• (when): 2020

Further information

• Handle: http://hdl.handle.net/10419/223562
• Last update: 10.03.2025, 11:41 AM CET