PD Dr. Jan-Hinrik Schmidt

Senior Postdoc Digital Interactive Media and Political Communication

PD Dr. Jan-Hinrik Schmidt has been Senior Postdoc for Digital Interactive Media and Political Communication at the Leibniz Institute for Media Research │ Hans-Bredow-Institut (HBI) since November 2007. His current work focuses on the developments of “Web 2.0” and “social media”. He is particularly interested in the changes of information circulation and opinion formation, the transformation of science communication as well as the practices and structures regulating digital communication.

He studied sociology at the Otto-Friedrich-University Bamberg and West Virginia University Morgantown, USA. Since 2000, he has worked in various positions at the University of Bamberg, including at the research centre “Neue Kommunikationsmedien [New Communication Media]”, the Chair of Sociology II (Prof. Dr. R. Münch) and the State Institute for Family Research. After completing his doctorate on the institutionalisation of local online offerings (2004), he was a DAAD scholarship holder at the Danube University Krems, Austria, and a guest researcher at the Johannes Kepler University Linz (Prof. Dr. B. Batinic). From 2005 to 2007, he worked on a DFG funded postdoctoral project on “Praktiken des onlinegestützten Networking” [Practices of Online Based Networking] at the research centre “Neue Kommunikationsmedien” in Bamberg.

Since 2019, he has headed the Hamburg section of the Research Institute Social Cohesion (RISC), which is based at the Leibniz Institute for Media Research. At RISC, his work focuses on the role of the media in social cohesion.

In June 2020, he habilitated at Universität Hamburg. He wrote his habilitation on “Practices and Social Order of the Social Web”.

You can also find the latest information on his blog at http://www.schmidtmitdete.de.

Contact information

PD Dr. Jan-Hinrik Schmidt

Senior Postdoc Digital Interactive Media and Political Communication

Leibniz Institute for Media Research | Hans-Bredow-Institut
Warburgstraße 30b
20354 Hamburg

Social media

Last update: 21.01.2026

Works by PD Dr. Jan-Hinrik Schmidt

Tastatur mit einer goldfarbenen Taste, die ein weißes Abzeichen zeigt
Beitrag Media Research Blog Post

Algorithmic Amplification of Negative Discourse as a Systemic Risk

How does attention-economy-driven algorithmic amplification of conflict-driven and negative-emotional communication distort public discourse? And does this distortion constitute a systemic risk under the Digital Services Act (DSA)? This blog article refers to our previous blogpost on "Platform Badges for Civic Communication", explains why such interventions are needed, and outlines how they could address these systemic risks.

Cover des Arbeitspapiers
Publikation Working Paper Available for Download

Public Service Media Enabling Dialogue

For the project “Dialog Formats in Public Service Media,” Magdalena Stratmann conducted a literature analysis on “The Role of Public Service Media as Enablers of Dialogue in Digitalized Societies.” This analysis is now available for download as a working paper.

Vorschau des Artikels von Christian Ollig auf epd Medien
Publikation Article for epd Medien

How the Digital Services Act (DSA) Regulates Platforms

U.S. politicians accuse the European Union of endangering freedom of expression with the Digital Services Act (DSA). However, media law expert Dr. Christian Ollig argues that the DSA actually protects users' opinions from arbitrary censorship by platform operators. It also gives users a legal basis to assert their freedom of expression against large platform operators at the European level.

Cover of the book
Publikation Contribution to an Anthology

Health Communication

Claudia Lampert, along with Prof. Dr. Eva Baumann and Dr. Bettina Fromm, published an article in the Health Sciences handbook that provides an overview of health communication. The handbook is now in its eighth edition.

Cover of the article written by Anna von Garmissen published on January 10th, 2026 on the media platform of epd Medien: "Gefährliche Abwärtsspirale. Zur Lage des Journalismus in Deutschland"
Publikation Article in epd Medien

Studies on the State of Journalism in Germany

What is the state of journalism in Germany? In her article for epd Medien, Anna von Garmissen discusses three recent studies on the state of journalism in Germany. According to von Garmissen, the findings are thought-provoking and, when considered together, should be alarming to all of us.

Hände tippen auf Laptop-Tastatur, darüber eingeblendete Symbole für Text, Dokument, Lupe und Auszeichnung mit Häkchen.
Beitrag Media Research Blog Post

Platform Badges for Civic Communication

How can platforms address distortions in the digital attention economy without restricting free expression excessively? This blog post explores how new incentive structures can promote constructive communication on digital platforms and the potential of the Digital Services Act to facilitate such interventions.

Cover of the Publication
Publikation Chapter in Anthology

Contextualized Repertoire Maps in Media Usage Research

In their article, Dr. Lisa Merten and Prof. em. Dr. Uwe Hasebrink present contextualized repertoire maps as a method for recording media repertoires based on a study on news usage and discuss their possibilities and limitations in media usage research. Their article is part of the anthology “Researching Media, Data, and Networking Practices: Methodological Concepts and Research Software.”

Publication by Jan-Ole Harfst in the special edition
Publikation Special Edition of the Bonner Rechtsjournal

Communication Risks in Online Environments

How can German democracy remain resilient in the face of the communicative threats posed by the digital space? Jan-Ole Harfst's article shows that communicative threats on the internet cannot be countered at the national level alone, but require supranational protection of democracy, and assesses the significance of the Digital Services Act in this context.

Publikation Internet Policy Review

Can Quality Badges Improve Communication on Online Platforms?

A seal of approval for civil communication could promote successful public communication on online platforms while respecting users'freedoms. In their article 'Platform Badges for Civic Communication. An Interdisciplinary Discussion of a Risk Mitigation Measure Pursuant to Art.', Jan Rau, Jan-Ole Harfst and Dr. Tobias Mast examine various design options for such seals.

Cover of the publication
Publikation Open Access Publication

Global Media and Internet Concentration

The report offers a thorough overview of the development, economic importance, and market concentration of major companies in Germany's telecommunications, media, publishing, and internet sectors from 2019 to 2023. It places a particular focus on the growing dominance of digital platforms.

Cover der Zeitschrift "Medien & Kommunikationswissenschaft" Heft 4/2025
Publikation Available Open Access

Issue 4/2025 M&K published

Issue 4/2025 of our open access journal “Medien & Kommunikationswissenschaft" (M&K; Media & Communication Studies) has been published online via the platform Inlibra.

Cover of the Book Chapter
Publikation Chapter in Cohesion Report

The Climate Discourse on Social Media

The Social Media Observatory (SMO) examined the dynamics of climate discourse on social media for the Research Institute Social Cohesion's (RISC) second cohesion report. The study found that climate scepticism and misinformation are common in social media debates. However, it is evident that these views are significantly less prevalent in wider society.

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