Dr Christos P. Mavis

Senior Lecturer in Finance and Accounting
BSc, MSc (Dunelm), PhD
60 MS 02
Tue: 16-17:00; Thu: 14-16:00; Feedback & Consultation hours (by appointment only)


Areas of specialism

Corporate Finance; Mergers and Acquisitions; Corporate Governance

University roles and responsibilities

  • Programme Director of MSc in International Corporate Finance, 2016 - Present
  • Internal Examiner of PhD Theses, 2013 - Present
  • Task force member of the University of Surrey Business and Economics Experiment (USBEE), 2017 - Present
  • Supervisor of MSc students, 2012 - Present
  • Personal Placement Tutor, 2012 - Present
  • Personal Academic Tutor, 2012 - Present

    Previous roles

    Programme Director of MSc in International Financial Management, 2015 - 2017
    Department Website Coordinator, 2012 - 2015
    PGR Summer School Tutor, 2013 - 2015


    Research interests

    Indicators of esteem

    • Referee for the Journal of Corporate Finance

    • Referee for European Financial Management

    • Referee for Corporate Governance: An International Review

    • Referee for the British Accounting Review

    • Referee for European Journal of Finance

    • Referee for International Journal of the Economics of Business

    • Referee for International Journal of Banking, Accounting and Finance

    • Referee for International Review of Financial Analysis

    Invited Presentations

    • Indian Institute of Management Ahmedabad (IIMA), Gujarat, India, 2022

    • Indian Institute of Management Ahmedabad (IIMA), Gujarat, India, 2020

    • Management School, University of Liverpool, Liverpool, UK, 2019

    • Indian Institute of Management Ahmedabad (IIMA), Gujarat, India, 2019

    • School of Business, Management, and Economics, University of Sussex, Sussex, UK, 2017

    • ICMA Centre, University of Reading, Reading, UK, 2017

    • Strathclyde Business School, University of Strathclyde, Glasgow, UK, 2016

    • Adam Smith Business School, University of Glasgow, Glasgow, UK, 2014

    External Examiner

    • Edinburgh Napier University, UK - Validation of accounting and finance UG and PG programmes, 2022
    • University of Hertfordshire, Hertfordshire, UK - BA (Hons) Finance, Accounting, 2015 - 2021


    Postgraduate research supervision

    My teaching

    My publications


    To view the full list of my publications and working papers please see the links below:


    Most recent

    Twitter Investor Sentiment and Corporate Earnings Announcements

    European Financial Management, Forthcoming

    We examine the impact of firm-specific investor sentiment (FSIS) on stock returns for negative and positive earnings surprises. Using a measure constructed from firm-specific tweets, we find that FSIS has a greater impact on stock returns for negative relative to positive earnings surprises. We further show that the impact of FSIS is greater for firms whose valuation is uncertain and difficult to arbitrage. Moreover, we provide evidence of return reversals over post-announcement periods. Our results highlight the importance of firm-specific investor sentiment around earnings announcements.