IDEAS home Printed from https://ideas.repec.org/p/frz/wpaper/wp2025_13.rdf.html
   My bibliography  Save this paper

How Large is Excess Volatility of the EUR/USD Exchange Rate? Evidence from a GAS Approach

Author

Listed:
  • Leonardo Bargigli

Abstract

Using a novel Generalized Autoregressive Score (GAS) methodology applied to EUR/USD high-frequency interdealer data on price variations and net demand in 2016, this paper provides evidence of a substantial violation of market efficiency in the foreign exchange market. The analysis shows that endogenous factors amplified efficient price fluctuations by at least 46\% on average, underscoring the importance of informational asymmetry and feedback trading in exchange rate dynamics. The key implication is that excess volatility of the EUR/USD exchange rate is not only sizeable but also structural, as it arises from mechanisms intrinsic to market functioning.

Suggested Citation

  • Leonardo Bargigli, 2025. "How Large is Excess Volatility of the EUR/USD Exchange Rate? Evidence from a GAS Approach," Working Papers - Economics wp2025_13.rdf, Universita' degli Studi di Firenze, Dipartimento di Scienze per l'Economia e l'Impresa.
    • Handle: RePEc:frz:wpaper:wp2025_13.rdf
    as

    Download full text from publisher

    File URL: https://www.disei.unifi.it/upload/sub/pubblicazioni/repec/pdf/wp13_2025.pdf
    Download Restriction: no
    ---><---

    More about this item

    Keywords

    ;
    ;
    ;
    ;
    ;
    ;

    JEL classification:

    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
    • C32 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes; State Space Models
    • C58 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Financial Econometrics
    • F31 - International Economics - - International Finance - - - Foreign Exchange

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:frz:wpaper:wp2025_13.rdf. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Giorgio Ricchiuti (email available below). General contact details of provider: https://edirc.repec.org/data/defirit.html .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.