Tobias Escher

Social information and political participation on the internet: an experiment

This paper tests whether the social information provided by the internet affects the decision to participate in politics. In a field experiment, subjects could choose to sign petitions and donate money to support causes. Participants were randomized into treatment groups that received varying information about how many other people had participated and a control group receiving no social information. Results show that social information has a varying effect according to the numbers provided, which is strongest when there are more than a million other participants, supporting claims about critical mass, and tipping points in political participation.

The Performance of Distributed News Aggregators

Originating as a study of the online news aggregator Digg, which relies on user ratings to determine which articles to put on the frontpage, this study evolved into a comprehensive survey of the online news aggregator space. This case study explores the conditions under which crowds are smart, analyzes the bias of several modes of information aggregation, and shows the risk of mob behaviour.

Mobilisierung zu politischer Partizipation durch das Internet: Erwartungen, Erkenntnisse und Herausforderungen der Forschung

Abstract This article is focusing on the state of research into the extent to which the opportunities for information, communication and participation opened up by the Internet have led to greater mobilisation of the public for political participation. After briefly presenting the diversity of conflicting expectations towards the Internet’s role for the political process, the article discusses the relevance of digital media as a means for mobilising greater and more equal political participation from a liberal-representative perspective on democracy. At the core of the article is a discussion of the last 15 years of research empirically testing the mobilisation hypothesis as well as the theories proposed to explain the observed participation patterns. What becomes dear is that the Internet does indeed slightly increase rates of political participation but with few exceptions those newly mobilised come from parts of the population that are already politically active. At the same time, the explanations still exhibit considerable gaps that remain to be dosed. To this end future research needs to address a number of challenges which are discussed in the final section of the article.