Joshua A. Tucker

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We estimated ideological preferences of 3.8 million Twitter users and, using a data set of nearly 150 million tweets concerning 12 political and nonpolitical issues, explored whether online communication resembles an "echo chamber" (as a result of selective exposure and ideological segregation) or a "national conversation." We observed that information was(More)
Katz and King have previously proposed a statistical model for multiparty election data. They argue that ordinary least-squares (OLS) regression is inappropriate when the dependent variable measures the share of the vote going to each party, and they recommend a superior technique. Regrettably, the Katz–King model requires a high level of statistical(More)
Are legislators responsive to their constituents in their public communication? To what extent are they able to shape voters’ preferences, as expressed by the issues they discuss? We address this twofold question with an analysis of all tweets sent by U.S. Members of Congress and a random sample of their followers from January to August 2013. Using a Latent(More)
  • Grigore Pop-Eleches, Beth Simmons, +9 authors Carmela Lutmar
  • 2009
This article uses empirical evidence from Latin American and East European IMF programs from 1982-2001 to analyze the nature and the extent of preferential lending practices by the International Monetary Fund. Unlike prior work, which focused on narrow political interference from large IMF member states, the present analysis differentiates between such(More)
In countries where citizens have strong grievances against the regime, attempts to address these grievances in the course of daily life are likely to entail high costs coupled with very low chances of success in any meaningful sense; consequently, most citizens will choose not to challenge the regime, thus reflecting the now well-known collective action(More)
Social media have provided instrumental means of communication in many recent political protests. The efficiency of online networks in disseminating timely information has been praised by many commentators; at the same time, users are often derided as "slacktivists" because of the shallow commitment involved in clicking a forwarding button. Here we consider(More)
O n July 28, 2003, Senators Ron Wyden (D-Ore.) and Byron L. Dorgan (D-N.D.) held a press conference to call attention to a DARPA (Defense Advanced Research Projects Agency) project that would allow investors to bet on future political events in the Middle East—including terrorist attacks—through a commodity-market style trading system. On July 29,(More)