We reproduce Shoub, Kelsey, Katelyn E. Stauffer, and Miyeon Song (May 2021). "Do Female Officers Police Differently? Evidence from Traffic Stops," with alternative specifications and interpretation of the results. While our reproduction confirms that female police officers are less likely to...

This article reviews and summarizes current reproduction and replication practices in political science. We first provide definitions for reproducibility and replicability. We then review data availability policies for 28 leading political science journals and present the results from a survey...

This Working Paper is a chapter forthcoming in Piki Ish-Shalom, Markus Kornprobst, and Vincent Pouliot, eds, Perspectives on Cognitive Evolution and World Ordering: Opening New Vistas, discussing Emanuel Adler's opus magnum on World Ordering. It uses Adler's analysis of power to unpack his...

The DIIS Working Paper 'From the geography of politics to the politics of geography' is the English version of the preface for the Brazilian edition of A return of geopolitics in Europe?. The book originally published with Cambridge University Press was translated by Bárbara Motta and published...

This study pushes our understanding of research reliability by reproducing and replicating claims from 110 papers in leading economic and political science journals. The analysis involves computational reproducibility checks and robustness assessments. It reveals several patterns. First, we...

The social sciences face a replicability crisis. A key determinant of replication success is statistical power. We assess the power of political science research by collating over 16,000 hypothesis tests from about 2,000 articles. Using generous assumptions, we find that the median analysis has...

The scientific method is predicated on transparency - yet the pace at which transparent research practices are being adopted by the scientific community is slow. The replication crisis in psychology showed that published findings employing statistical inference are threatened by undetected...