Opinion Formation

The “Opinion Formation” research group investigates how people can form their own independent opinions and what is required to make this possible on the part of lawmakers, society, the media, and online platforms.

Public opinion does not emerge in a single place or through a single actor. It emerges from a complex interplay among citizens, the media, platforms, politics, academia, civil society, businesses, and, increasingly, automated systems.

All of these actors pursue different goals, operate under different conditions, and influence in various ways which issues gain visibility and how they are evaluated.

Digitalization, platformization, and the use of artificial intelligence are raising classic questions about the democratic public sphere anew.

  • What is needed for people to form opinions freely and with full knowledge of the facts?
  • How do platforms change the visibility of information?
  • What are the consequences of disinformation, misinformation, and targeted manipulation?
  • And what responsibilities do the media, platforms, the state, and society bear?

Photo by Annie Spratt/Unsplash

Overview

Last update: 24.09.2026

Blog Articles, News, Projects, Publications, Podcast Episodes

Spielfiguren und Playmobil-Gegenstände auf einem Haufen: Radio, Laptop, Fernseher, Kamera, Buch und Zeitung.
International Cooperation

Transnational Media Histories

Relationships between media and by media do not stop at borders. The cooperative project with the Macquarie University in Sydney investigates such transnational histories of media.

Drei Menschen stehen an einen Maschendrahtzaun gelehnt. Einer blickt ins Smartphone
Subproject Research Institute Social Cohesion

Media Use and Social Cohesion

How do people in different social situations use different kind of media? And how do they contribute to the creation of public spheres and social cohesion?

Junger Mann im Café mit Laptop und Smartphone
Subproject Research Institute for Social Cohesion

Transfer Office “Media and Social Cohesion”

The transfer office “Media and Social Cohesion” is coordinating all transfer and research acitivities of the projects, which the HBI contributes to the Research Institute Social Cohesion.

Junge Frau mit Kopfhörern schaut ins Smartphone.
Study for Hamburg Senate and dpa

Use the News

In the "Use the News" project, the Leibniz Institute for Media Research is researching the news literacy of the population under the age of 30.

Nahaufnahme eines Netzes
Rules in Digital Communication Spaces

Norms of the Net

The framework project bundles research activities in the area of the structural perspective investigation of rule formation in digital communication spaces.

Illustration einer jungen Frau mit Laptop vor einer Deutschlandkarte mit Medienlogos
Study Findings in Video

People Who Use Media Also Trust Them – But Not Unconditionally

In Germany, trust in established news sources can best be explained by age: Older internet users tend to place more trust in the news than younger ones. There are also differences regarding political orientation.

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Open Access!

Longitudinal Upstream and Downstream Effects of Political Participation

Judith Möller and fellow researchers have published an article in the international political science journal "Acta Politica". It examines the question of whether low-threshold political activities make people participate more in democratic processes such as elections or less.

Cover of the publication "Sozialer Zusammenhalt vor Ort"
RISC Publication

Social Cohesion at the Local Level

A new volume in the series published by the Research Institute Social Cohesion (RISC) brings together contributions on the topic of “Social Cohesion at the Local Level.” Among the contributions is an article by PD Dr. Jan-Hindrik Schmidt and Hannah Immler, RISC researchers at the Hamburg section of the HBI, on "Local Media Repertoires and Cohesion-Related Attitudes."

Paper stack
Scientific Accompanying Research

Repository for Policy Documents

Our institute provided scientific support for the development of this specific information and consulting infrastructure.

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