2019

• Is the All-Subjected Principle Extensionally Adequate? Workshop on the Democratic Boundary Problem, Institute for Futures Studies, Stockholm.
• Values and Vampires, Higher Seminar in Philosophy, Stockholm University.
• Democracy as Self-Government and the All-Affected Principle, PPE Seminar, Institute for Futures Studies, Stockholm.
• Comment on ‘Consequentialism and Moral Virtue’ by Robert J. Hartman, Higher Seminar in Philosophy, Stockholm University.

​2018

• A Novel Solution to the Boundary Problem, Workshop on the Democratic Boundary Problem, Institute for Futures Studies, Stockholm.
• Values and Vampires, Workshop on Error Theory, University of Luxembourg.
• Kommentar zu Webber und Möller über das Abwägen von Würde, 2. Sitzung Arbeitskreis Zurechnung, Fritz Thyssen Stiftung, Cologne. 
  
• The Importance of Democracy on Utilitarianism, Conflicting Claims on Constituent Power: the People and the Constitution in Pluralistic Societies, Stockholm University.
• Thomas Hobbes’ Leviathan - Inhalt und Wirkung, Gesellschaft für kritische Philosophie Nürnberg (GKPN), Nuremberg.
• The Transience Dilemma of AAP and ASP, Institute for Futures Studies, Stockholm.
• A Defence of Hedonism Against the Incompleteness Objection, Academic Retreat in Limburg, organized by Prof Dr Leo Menges.
• Prioritarianism, Whole Lives and Life Periods, Workshop on Prioritarianism, Karlsruher Institut für Technologie.
• The Utilitarian Justification of Democracy, ISUS XV, Karlsruher Institut für Technologie.
• ​Some Reasons Why Philosophers Sympathetic to The Consequentialist Idea Should Not Accept Standard Consequentialism, Panel at ISUS XV on Moral Theory and the Consequentialism/Non-Consequentialism Distinction, convenor: Prof Dr Christian Seidel, Karlsruher Institut für Technologie.
• ​Legitimate Borders and Problems of Secession, Joint Bavarian-Russian Conference on Interdisciplinary Humanities and Social Sciences, Bayreuth University.
• Lässt sich der Akt-Konsequentialismus gegen Unrechtseinwände verteidigen? Eine Projekt-Skizze. Gesellschaft für Utilitarismusstudien, Karlsruher Institut für Technologie. 

2017

• The Identity of Agents and Deciders, Research Colloquium Practical Philosophy, Bielefeld University. 
• Democratic Boundaries and the Identity of Agents and Deciders, Workshop in Practical Philosophy: Summer 2017, Saarland University.
• A New Solution to the Boundary Problem, Workshop für Politische Philosophie, organized by Prof. Dr Fabian Wendt and Prof. Dr. David Schweikard, University of Flensburg. 
• Workplace Democracy and the Boundary Problem,  Workshop on Economic Democracy at Politicologenetmaal 2017, convenors: Prof Dr Gabriel Wollner and Prof Dr Nicholas Vrousalis, University of Leiden.

2016

• The Dual-Source View of Role Obligations, Colloquium, Prof Dr Thomas Schmidt, Humboldt University of Berlin.
• Does Democracy Require the Institutional Representation of Future Generations?, Colloquium, Prof Dr Kirsten Meyer, Humboldt University of Berlin.
• The Problem of Self-Imposed Priming and Support, Workshop with Philip Pettit on The Robust Demands of the Good, Free University of Berlin. 
• Collective Autonomy and the Boundaries of Democracy, Humboldt University of Berlin.
• Mills qualitativer Hedonismus und die Frage nach der optimalen Bevölkerungsgröße (Mill's Qualitative Hedonism and the Issue of the Optimal Population Size), University of Siegen.

2015

• The Paradox of Supererogation Cannot be Resolved, Workshop: Supererogaton – Concept and Context, University of Basel.
• Future People and Strong and Weak Forms of Democratic Representation, MANCEPT 2015, University of Manchester.
• Sieben Probleme in Norbert Hoersters Moralbegründung (Seven Problems of Norbert Hoerster’s Moral Theory), Symposium zur Philosophie Hoersters, convenor: Prof Dr Oliver Hallich, University of Duisburg-Essen.
• Role Obligations and Social Norms, Workshop in Practical Philosophy: Summer 2015, Saarland University.
• Wen sollen demokratische Institutionen repräsentieren? Das Demos-Problem und zukünftige Generationen (Whom Should Democratic Institutions Represent? The Demos Problem and Future Generations), DAAD Stipendiatentreffen (Meeting for scholarship holders of the German Academic Exchange Service), University of Mannheim.

• Does Democracy Require the Representation of Future Generations?, Workshop in Practical Philosophy: Winter 2014/15, Saarland University.

2014

• The Paradox of Supererogation Cannot Be Resolved, University of Belgrade.

• Demokratie und Ombudsleute für zukünftige Generationen”, Research and Study Centre “Dynamics of Change, University of Mannheim.

• Demokratie und gravierende Fehlentscheidungen, Tagung Praktische Philosophie, University of Salzburg.
• Competitive and Non-Competitive Theories of Supererogation, DKPhil XXIII, University of Münster.
• Public and Private Morality and the Standards of Praise and Blame, MANCEPT 2014, University of Manchester.
• Facets of Rightness and the Choice between Act- and Rule-Consequentialism, ISUS XIII, Yokohama National University.
• Facets of Rightness and the Choice between Competing Moral Theories, Understanding Value III, University of Sheffield.
• Subjectivism and ‘Ought’ Implies ‘Can’, Workshop in Practical Philosophy: Summer 2014, Saarland University.
• God and Eternal Boredom, Religious Studies at 50, University of Leeds.
• Mehr Gemeinwohl durch institutionelle Reformen?, Hochschultage Nachhaltigkeit, University of Heidelberg.
• Begründungen für nachhaltige Institutionen, Workshop of the Research and Study Centre Dynamics of Change, University of Mannheim.

2013

• Multi-Dimensional Consequentialism and Risk, Workshop The Dimensions of Consequentialism, University of Konstanz.
• The Grounds of Role Obligations, Academic Retreat on Reichenau Island, convenor: Dr Attila Tanyi, University of Konstanz. 
• A Collectivist Account of Role Obligations, MANCEPT 2013, University of Manchester.          
• Konsens-Nonsens – Warum Zustimmung für politische Legitimität nicht maßgeblich ist, Workshop: Moral­begründung und Politische Philosophie, convenors: Prof Dr Walter Pfannkuche and Jens Schnitker, University of Kassel.
• Konsens-Nonsens – Warum Zustimmung für politische Legitimität nicht maßgeblich ist, University of Bielefeld.
• Ramifications of Error Theories about the Deontic, Workshop in Practical Philosophy: Summer 2013, Saarland University.
• The Moral Relevance of Inculpable Ignorance, Konstanz-Zürich Colloquium, University of Konstanz.
• Duty-Free Consequentialism, Colloquium, Prof Dr Thomas Schmidt, Humboldt-Universität zu Berlin.

2012

• Objective Consequentialism and Ignorance-Induced Inability, Colloquium, Prof Dr Gottfried Seebaß, University of Konstanz.
• Duty-Free Consequentialism, Colloquium, Prof Dr Peter Stemmer, University of Konstanz.
•  Objective Consequentialism and Ignorance-Induced Inability, Academic Retreat on Reichenau Island, convenor: Dr Tanyi, University of Konstanz.
• A New Perspective on Perspective-Dependence, Workshop in Practical Philosophy: Autumn 2012, Saarland University.
• A New Argument for Subjective Consequentialism, GAP 8, University of Konstanz.
• Die konsequentialistische Begründung von juridischen Rechten (The Consequentialist Justification of Legal Norms, with Martin Kerz), 19th Conference of the Young Forum for Philosophy of Law (JFR), University of Münster.
• The Objective Consequentialist vs. Karpov, ISUS XII, New York University. 06/2012
• In Defence of the Medical Model of Disability, Applied Ethics Discussion Group, convenor: Julian Savulescu, University of Oxford.
• Consequentialism and Action-Guidance, Workshop in Practical Philosophy: Summer 2012, Saarland University.
• Between Boredom and Ignorance – On the Problems of an Omnitemporal Deity (with Attila Tanyi), 2nd Glasgow Philosophy of Religion Seminar, University of Glasgow.
• A Case for Scalar Consequentialism, Graduate Seminar in Practical Philosophy, convenor: Torbjörn Tännsjö, University of Stockholm.
• A Case for Scalar Consequentialism, Higher Seminar in Practical Philosophy, convenor: Erik Carlson, University of Uppsala.
• Subjective Consequentialism and Commonsense Morality, Ockham Society, University of Oxford.
• A Case for Scalar Consequentialism, Workshop in Practical Philosophy: Winter 2011/12, Saarland University. 

2011

• Objective Consequentialism and the Principle That ‘Ought’ Implies ‘Can’, academic retreat on Reichenau Island, convenor: Attila Tanyi, University of Konstanz.
• Können Gruppen rationale Akteure sein? (Can Groups be Rational Agents?), Spring School Realität und Bedeutung kollektiver Absichtlichkeit – philosophische und rechtliche Aspekte, University of Konstanz. 

2010

• Is Act-Consequentialism Collectively Self-Defeating?, Workshop in Practical Philosophy: Autumn 2010, Saarland University.
• Is Act-Consequentialism Collectively Self-Defeating?, Oberseminar Probleme der Angewandten Ethik, convenor: Bernward Gesang, University of Mannheim.
• Corporations as Instruments, International Conference on Collective Intentionality VII, University of Basel.
• Jill and the Case for Subjective Consequentialism, Workshop in Practical Philosophy: Summer 2010, Saarland University.
• Jill and the Licensing Dilemma, Oberseminar Probleme der Angewandten Ethik, convenor: Bernward Gesang, University of Mannheim.
• Humaner Utilitarismus und externe Präferenzen (Humanistic Utilitarianism and External Preferences), Workshop in Practical Philosophy: Winter 2009/10, Saarland University. 

2009

• Jacks Besuch der Kathedrale: Warum der Motiv-Utilitarismus scheitert (Jack’s Visit of the Cathedral – Why Motive- Utilitarianism Fails), GAP 7, University of Bremen.
• Jacks Besuch der Kathedrale: Warum der Motiv-Utilitarismus scheitert, Workshop in Practical Philosophy: Summer 2009, Saarland University.
• Eine Kritik an Norbert Hoersters Theorie der Normenvertretung, Workshop in Practical Philosophy: Spring 2009, Saarland University.
• Was ist Utilitarismus? (What is Utilitarianism?), Freundeskreis der Giordano Bruno Stiftung in Ostwestfalen, Bielefeld. 

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