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The aim of the text is to reflect on the formation of the so-called digital echo chambers or filter bubbles, which are environments formed around particular topics whose objective is to promote a given political-ideological position. The argument the author puts forward is that echo chambers are social systems of interaction created to deal with the process of informational overload brought about by the consolidation of digital media in people’s daily lives.

The author used Niklas Luhmann’s theory of social systems to explain what the author is calling social systems of interaction. Furthermore, the author made clarifications about: (1) the current debate regarding echo chambers; (2) what is the concept of “information” that the author is using to formulate the proposition and (3) what is the specificity that digital media bring when the author talks about informational overload and about the formation of echo chambers.

The author concluded that echo chambers can be seen as digital interaction systems, but the concept of “interaction” must be adapted. The author also concluded that echo chambers help society to deal with the phenomenon of informational overload.

There are few works which try to make a detailed analysis of echo chambers from a Luhmannian perspective. With the propositions presented in this text, along with other writings of the own, the author gives an important step in that direction by introducing the topic in the social systems researchers community.

This paper seeks to illustrate how interventionist education reforms shape dis/trust-building processes and their impact on teacher professionalism in vocational education and training (VET) across national contexts. Using trust as the object of analysis, we discuss the affective mechanisms of becoming a professional in a standards-based neoliberal environment.

Through an analysis of VET teacher narratives in England and Austria, the paper draws attention to the ways in which policy instrumentalism has created a culture of distrust in VET. Drawing upon foundational work on system trust developed by Niklas Luhmann, we illustrate how conditions for trust sit at symbolic thresholds, which set the conditions for professional recognition within VET.

Our analysis revealed that attempts to standardise VET strategy are fuelled by the need for existential security and predictability, leading to tensions in the cultivation of system trust. Conditions for professional recognition across both contexts were based on practices of documentation and subordination, narrowly defining modes of legitimate self-expression in organisations. This constitutes a crisis of trust in VET teacher professionalism, which undermines pedagogical autonomy and integrity.

We seek to highlight the impact that reduced trust in the governance of VET can have on issues associated with teacher motivation, well-being and retention. The consideration of trust is therefore essential both for policy design and implementation in VET organisations.

The application of trust theory offers a distinctive lens through which to understand the impact of accountability, performativity and governance processes upon teacher subjectivity within VET across national contexts.

The paper starts from an observation of a discrepancy between the ambitions for sustainable change in the agro-industry and the actual changes being implemented. We offer one possible explanation by investigating the organizational structures conditioning change in this industry.

We apply a case study methodology, focusing on the Danish pig industry and its organizational conditions for change. Based on interviews and document analysis, and building on systems theory, we develop the concept of change structures, understood as decision premises that guide the change of further decision premises.

The analysis suggests that the pig industry’s change structures predominantly enable changes that cut costs and optimize the production, which may conflict with and possibly foreclose the changes needed to realize the industry’s sustainable ambitions. This conflict and its implications are not acknowledged by the industry.

The analysis indicates that the industry may be locked in its current form of organizational change. We suggest a way to overcome the lock-in by fostering organizational mechanisms that enable alternative interpretations to emerge internally. Without this, achieving the required sustainable change in the industry may hinge on stronger external regulation and support.

Conceptually, the notion of change structures supplements actor-oriented analytical approaches that focus on change agents and sense-making. Empirically, we contribute with an analysis of the conditions of possibility for sustainable change in an important yet understudied industry in organization studies; namely, the conventional agro-industry.