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Below results based on the criteria 'media'
Total number of records returned: 6

Politicians and the Press: Who Leads, Who Follows?
Bartels, Larry M.

Uploaded 08-23-1996
Keywords media
Abstract his paper examines the interplay between politicians and the press in setting the national policy agenda. The data for the analysis consist of daily counts of executive branch activities, congressional activities, New York Times stories, local newspaper stories, and ABC News coverage of Bosnia, Medicare, NAFTA, and Whitewater during the first three years of the Clinton administration. Vector autoregressions suggest that all three media outlets (and the politicians themselves) followed the lead of the executive branch on Bosnia and NAFTA and of Congress on Medicare and Whitewater. However, New York Times coverage led political activities even more than it followed them, with especially strong agenda-setting effects for NAFTA and Whitewater. The independent agenda-setting power of ABC News was substantially less than that of the Times, but still considerable, while local newspapers tended, by and large, to follow the lead of politicians and the national news media. Prepared for presentation at the Annual Meeting of the American Political Science Association, San Francisco, September 1996.

Exploiting a Rare Shift in Communication Flows to Document News Media Persuasion: The 1997 United Kingdom General Election
Ladd, Jonathan
Lenz, Gabriel

Uploaded 07-30-2008
Keywords Media persuasion
causal inference
Abstract Using panel data and matching techniques, we exploit a rare change in communication flows -- the endorsement switch to the Labour Party by several prominent British newspapers before the 1997 United Kingdom general election -- to study the persuasive power of the news media. These unusual events provide an opportunity to test for news media persuasion while avoiding methodological pitfalls that have plagued previous studies. By comparing readers of newspapers that switched endorsements to similar individuals who did not read these newspapers, we estimate that these papers persuaded a considerable share of their readers to vote for Labour. Depending on the statistical approach, the point estimates vary from about 10 percent to as high as 25 percent of readers. These findings provide rare, compelling evidence that the news media exert a powerful influence on mass political behavior.

Foreign Media and Protest Diffusion in Authoritarian Regimes: The Case of the 1989 East German Revolution
Kern, Holger

Uploaded 11-25-2008
Keywords Germany
causal inference
collective action
social movement
Abstract Does access to foreign media facilitate the diffusion of protest in authoritarian regimes? Apparently for the first time, I test this hypothesis by exploiting a natural experiment in communist East Germany. I take advantage of the fact that West German television broadcasts could be received in most but not all parts of East Germany and conduct a matched analysis in which counties without access to West German television are matched to a comparison group of counties with West German television. Comparing these two groups of East German counties, I find no evidence that West German television affected the speed or depth of protest diffusion during the 1989 East German revolution.

Opium for the Masses: How Foreign Media Can Stabilize Authoritarian Regimes
Kern, Holger
Hainmueller, Jens

Uploaded 04-11-2007
Keywords instrumental variables
causal inference
local average response function
media effects
East Germany
regime legitimacy
Abstract In this case study of the impact of West German television on public support for the East German communist regime, we evaluate the conventional wisdom in the democratization literature that foreign mass media undermine authoritarian rule. We exploit formerly classified survey data and a natural experiment to identify the effect of foreign media exposure using instrumental variable estimators. Contrary to conventional wisdom, East Germans exposed to West German television were more satisfied with life in East Germany and more supportive of the East German regime. To explain this surprising finding, we show that East Germans used West German television primarily as a source of entertainment. Behavioral data on regional patterns in exit visa applications and archival evidence on the reaction of the East German regime to the availability of West German television corroborate this result.

Unpacking the Black Box: Learning about Causal Mechanisms from Experimental and Observational Studies
Imai, Kosuke
Keele, Luke
Tingley, Dustin
Yamamoto, Teppei

Uploaded 07-01-2010
Keywords causal inference
direct and indirect effects
potential outcomes
sensitivity analysis
media cues
incumbency effects
Abstract Understanding causal mechanisms is a fundamental goal of social science research. Demonstrating whether one variable causes a change in another is often insufficient, and researchers seek to explain why such a causal relationship arises. Nevertheless, little is understood about how to identify causal mechanisms in empirical research. Many researchers either informally talk about possible causal mechanisms or attempt to quantify them without explicitly stating the required assumptions. Often, some assert that process tracing in detailed case studies is the only way to evaluate causal mechanisms. Others contend the search for causal mechanisms is so elusive that we should instead focus on causal effects alone. In this paper, we show how to learn about causal mechanisms from experimental and observational studies. Using the potential outcomes framework of causal inference, we formally define causal mechanisms, present general identification and estimation strategies, and provide a method to assess the sensitivity of one's conclusions to the possible violations of key identification assumptions. We also propose several alternative research designs for both experimental and observational studies that may help identify causal mechanisms under less stringent assumptions. The proposed methodology is illustrated using media framing experiments and observational studies of incumbency advantage.

Methods for Extremely Large Scale Media Experiments and Observational Studies
King, Gary
Schneer, Benjamin
White, Ariel

Uploaded 07-18-2014
Keywords experiments
public opinion
media effects
social media
text analysis
time series
causal inference
Abstract We develop statistical methods and large scale data engineering approaches for estimating the effects of a large number of mass and specialized media sites on opinions expressed in the daily flow of millions of social media posts. We first describe the instruments we adapt, develop, and validate for summarizing detailed opinions in social media posts, and then outline the procedures we devised for acquiring and summarizing news content from, and web traffic to, large numbers of media outlets. We then derive statistical methods for estimating the causal effect of changes in the news on social media opinions appropriate for observational, quasi-experimental, and experimental settings

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