IO Conferences:
IIOC - International Industrial Organization Conference - 2013-2016 (Boston; Chicago; Boston; Philadelphia; “Rising star” 2013), 2021(online), 2022 (Boston), 2024 (Boston)
CRESSE - Competition and Regulation Conference - 2012-2016 (Crete; Corfu; Corfu; Crete; Rhodes; Invited session 2013), 2021-2023 (Crete; Crete; Rhodes), 2024 (Crete), 2025 (Crete)
DICE Policy Conference - 20-22 Nov.2025
Oligo Workshop - 2024 (Cambridge)
CRIEI - Competition and Regulation in Ireland - 2025 (Dublin), 2026 (Dublin)
EARIE - European Assoc. Research Industrial Economics - 2011-2012 (Stockholm; Rome), 2014-2015 (Milan; Munich), 2019 (Barcelona), 2021-2022 (online; Vienna), 2024 (Amsterdam)
EALE - European Association of Law and Economics - 2016 (Bologna), 2021 (online), 2022 (Lisbon)
APIOC - Asia Pacific IO Conference - 2021 (online)
BECCLE - Bergen Competition Policy Conference - 2020 (cancelled), 2023
NORIO - Nordic Workshop on Industrial Organization - 2019 (Stockholm)
Finance Conferences:
Central Bank of Ireland, Winter Workshop - 2024 (Dublin)
IAF - Irish Academy of Finance, 2022 (invited), 2023 (Limerick), 2024 (Dunboyne), 2025 (Cork)
IAFA - Irish Accounting and Finance Association, 2021 (online), 2025 (May, Dublin)
IFABS - Finance and Banking Conf., Oxford, 2023 [co-author]
FMA - Financial Management Association, 2023 [co-author] - Shortlisted best paper award.
General Conferences:
Royal Economic Society - 2024 (Belfast)
IEA - Irish Economic Association - 2011 (Limerick), 2013 (Maynooth), 2018 (Dublin), 2021-2024 (Dublin, Limerick, Athlone, Galway)
EEA - European Economic Association - 2013 (invited), 2016
Irish Society for New Economists (ISNE, now IPECE) - 2010, 2011
Warsaw International Economic Meeting (WIEM) - 2010
Annual London Business Research Conference - 2010
Talks at Regulators and Government bodies:
ICN meeting, advisor for the CCPC https://icn25cma.co.uk/agenda/ - May 2025, Edinburgh
Institute for International and European Affairs (IIEA) - Autumn 2025
CCPC Ireland (Competition and Consumer Protection Commission), 2021, 2022
ACM (Netherlands' Competition Authority), 2021
ComReg (Commission for Communications Regulation) 2020 [cancelled]
KKV - Swedish Workshop for Competition Research - 2013-2016, 2018
Seminars and other talks:
UVA Amsterdam Cartel Workshop - December 2024
CADE Annual Meeting Keynote Speaker - 2024
DICE: Dusseldorf Institute for Competition Economics - 11/2023
Mannheim Workshop on Competition and Corporate Law -3/2023
UCD School of Economics - 2/2023
UCD Geary Institute - 10/2022
UCD Smurfit Business School - 9/2022
Brown Bag Seminar UCD Smurfit (2020, cancelled)
OECD Roundtable on Collusion (external expert) - (2018 and 2015) Video available here
UCD School of Economics (2016)
Maynooth University (2016)
Ross School of Business, University of Michigan (2015)
SITE, Stockholm School of Economics (2014)
TEDxFULBRIGHT “Creativity and Innovation” - 5th April 2014 TedTalkMarvao2014
Catholic University of Lisbon Seminar (2013)
Workshop on Multinational Firms, Trade and Innovation - 2012
European Trade Study Group (ETSG) - 2012
Trinity College Dublin Seminars (2010-2012)