We propose a simple method to quantify narratives from textual data, and identify “narrative monetary policy surprises” as the difference in narrative focus central bank communication accompanying interest rate meetings economic media coverage prior those meetings. Identifying surprises, using Norwegian provides surprise measures that are uncorrelated with conventional and, contrast such have s...

This study examines the validity of a norm-reinforcement approach as a complementary model to direct media effects on health behavior change. Focusing on news coverage effects on youth binge drinking between 1978 and 1996, it was hypothesized that the media may have contributed to the reduction in this behavior by increasing perceptions of social disapproval.The predictive power of this approac...

We investigate transmission and playout policies for streaming media over a wireless link. In particular, we choose both the power at the transmitter and the playout rate at the receiver, in order to minimize the power consumption and maximize the media quality. We formulate the problem using a dynamic programming approach, study the structural properties of the optimal solution, develop justif...

In the policy environment, the news media play a powerful and influential role, determining not only what issues are on the broad policy agenda, but also how the public and politicians perceive these issues. Ensuring that reporters and editors have access to information, that is, credible and evidence-based is critical for stimulating healthy public discourse and constructive political debates....

The authors aim at illuminating several fundamental and powerful yet theoretically obscure aspects of collective actions in social media. The reader will gain an advanced and deepen our understanding of collective action in the new generation of (ICT) enabled by Web 2.0, also referred to as social media, to help critical decision and policy making. The developed theories will be a valuable and ...