IO Conferences:
CRESSE - Competition and Regulation Conference - 2012-2016 (Crete; Corfu; Corfu; Crete; Rhodes; Invited session 2013), 2021-2023 (Crete; Crete; Rhodes), 2024 (Crete), 2025 (Crete), 2026 (Kos, July)
MaCCi - Mannheim Competition Conference - 2015, 2026
CRIEI - Competition and Regulation in Ireland - 2025 (Dublin), 2026 (Dublin)
IIOC - International Industrial Organization Conference - 2013-2016 (Boston; Chicago; Boston; Philadelphia; “Rising star” 2013), 2021(online), 2022 (Boston), 2024
DICE Policy Conference - 20-22 Nov.2025
Oligo Workshop - 2024 (Cambridge)
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:
DG-Comp (European Commission) - 26th November 2026
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:
SITE, Stockholm School of Economics - 2014, 2026
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)
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)