Blog

By Tom Pepinsky

Valid instrumental variables are hard to find. The key identification assumption that an instrumental variable  be correlated with an endogenous variable , but not causally...

By Justin Esarey

The Political Methodologist is calling for papers for a special issue of TPM concerning the process of peer review in political science!

Peer review is something that every...

By Justin Esarey

Our final talk for Spring 2015 will be given by Mike Ward (Duke University); his presentation is entitled “Irregular Leadership Changes in 2015: Forecasts using ensemble, split...

By Justin Esarey

This week, Mark Nieman (University of Alabama) will be giving a presentation entitled “Statistical Analysis of Strategic Interaction with Unobserved Player Actions.” Everyone is...

By Natalia S. Bueno and Guadalupe Tuñón

[Editor’s note: this post is contributed by Natalia Bueno and Guadalupe Tuñón.]

During the last decade, an increasing number of political scientists...

By Christopher Gandrud

The yrcurnt variable in the Database of Political Institutions (Beck et al. 2001, updated in 2013)[1]–DPI–is a regularly used measure of government election timing. For...

By Justin Esarey

There’s a well-known bit of code for estimating Liang and Zeger (1986) type cluster robust standard errors for GLM models in R (see also Rogers 1993), but it doesn’t work...

By Justin Esarey

This week, Molly Roberts (University of California, San Diego) will be giving a presentation entitled “Detecting and Understanding Propaganda in Chinese Newspapers.” Everyone is...

By Fang-Yi Chiou

Editor’s Note: this post is contributed by Fang-Yi Chiou, research fellow of the Institute of Political Science, Academia Sinica.

In the political science research...

By Justin Esarey

This week, Christopher Zorn (Penn State University) will be giving a presentation entitled “Corpus-Based Dictionaries for Sentiment Analysis of Specialized Vocabularies.”...