Changes of Causal Attribution by a Co-actor in Situations of Obvious Causality

In social contexts, people are responsible for their actions and outcomes. Diffusion of responsibility is a well-known social phenomenon: people feel less responsible when performing an action with co-actors than when acting alone. In previous studies, co-actors reduced the participant’s responsibility attribution by making the cause of the outcomes ambiguous. Meanwhile, it is unclear whether the presence of co-actors creates diffusion of responsibility even in situations where it is “obvious” that both oneself and the co-actor are the causes of an outcome. To investigate this potential diffusion of responsibility, we used a temporal binding (TB) task as a measure of causal attribution. Low TB effects indicate the enhancement of external attribution (i.e., diffusion of responsibility) in perceptual processing for the action and outcomes. To investigate the influence of presence of a co-actor on causal attribution, participants were required to act under two experimental conditions: an ALONE condition (participant only) or a TOGETHER condition (with a co-actor). The only difference between the two conditions was whether the actions were shared. In addition, to make participants feel responsible, they were induced to feel guilt. In the High-harm condition, participants gave a financial reduction to a third party. When guilt was induced, participants showed lower TB effects in the TOGETHER condition compared to the ALONE condition. Our study suggests that actions with a co-actor change causal attributions even though the causes of the outcome are obvious. This may have implications for understanding diffusion of responsibility in inhumane situations.

The Diffusion of Nonviolent Campaigns

Existing research has uncovered strong geographical clustering in civil war and a variety of diffusion mechanisms through which violence in one country can increase the risk of outbreaks in other countries. Popular coverage of nonviolent protest often emphasizes regional waves like the 1989 revolutions in Eastern Europe and the Arab Spring. However, most research on nonviolence focuses only on features within countries affecting motivation and opportunities, and we know little about the possible role of diffusion and transnational factors. We detail how nonviolent campaigns in other states can increase nonviolent mobilization and direct action, highlighting important differences in the likely actors for violent and nonviolent direct action and the relevant diffusion mechanisms. We find strong empirical evidence for diffusion in nonviolent campaigns. The effects are largely confined to campaigns in neighboring countries, and there is little evidence of global diffusion. The potential diffusion effects are also specific to whether dissent is violent and nonviolent rather than general political instability. Moreover, we find that the effects of neighboring campaigns on nonviolent direct action apply only in cases with plausible motivation for contesting the government, and the effects are stronger when the regional environment can help expand opportunities for organizing dissent.

Measurement and modelling of reactive transport in geological barriers for nuclear waste containment

Unit cell illustrating potential diffusion paths (bonds, yellow and red) in the neighbourhood of central particle (green); these join neighbouring cell faces and show where elongated pores may be assigned to the experimental pore system information.

Digital radio – the fight for diffusion in Germany

Purpose – The diffusion of digital radio has experienced more challenges than for digital TV regarding a digital switchover. The purpose of this paper shows on the specific case of Germany, which difficulties the digital sound broadcasting technology of Digital Audio Broadcasting (DAB) has been facing from several points of view. The difficulties are reviewed and outlined to overcoming different barriers and to facilitating its diffusion. Design/methodology/approach – The paper analyses how the diffusion of digital radio is perceived by industry representatives such as radio consultants and several stakeholders along the value chain of the radio industry. In semi-structured interviews, participants describe and evaluate the challenges for DAB as digital audio broadcasting standard mainly in Germany. Findings – After two decades of deploying digital radio in Germany, its success is still missing. Various very different aspects have prevented the diffusion of the new technology. Among various barriers, the radio industry sees missing benefits, marketing errors and a lack of inter-industrial collaboration as barriers in a retro-perspective. Research limitations/implications – The analysis does not cover other countries, where DAB as standard was introduced. Also other standards for digital radio are not considered. Practical implications – With referring to barriers for digital radio, there is a scope for those countries about to introduce the technology to troubleshoot the failings of overcoming barrier. An idea can emerge, how authorities and industrial stakeholders can help to facilitate the diffusion of digital radio. It also indicates the need of governmental interaction for the coordination of a technology introduction in a network industry. Social implications – The theoretical model, referred to, gives a good overview of potential diffusion barriers as most identified problems for the German case. The model and the illustrated problems of the paper can be used in practice to manage potential diffusion problems during technology introductions. Originality/value – There is a lack of published information about the faced challenges for the diffusion of digital radio. The retro-perspective benefits from the broad experience of participants having observed the challenges of the past decade with DAB in Germany. Additionally, the results are mapped to a theoretical framework with limits for the diffusion of innovation for generalising.