Personalization is becoming ubiquitous on the World Wide Web. Such systems use
statistical techniques to infer a customer's preferences and recommend content best suited …

This article studies the survival, persistence, and growth of fast-growing firms after their fast-
growth period, using an extensive data set of Austrian firms. We use two definitions to …

This study examines changes in the association between social media use and protest
behavior in the context of growing social unrest among the younger population. Using …

Is the death penalty a more effective deterrent than lengthy prison sentences? Does a
judge's gender influence their decisions? Do independent judiciaries promote economic …

Many theoretical and empirical accounts of representation argue that primary elections are a
polarizing influence. Likewise, many reformers advocate opening party nominations to …

New data show that between 1982 and 2007, in over 60 countries governments were linked
to and cooperated with informal armed groups within their own borders. Given the …

We study the governance of public good provision in poor communities in Oaxaca, Mexico.
We estimate the effect of usos y costumbres—a form of participatory democracy prevalent in …

Although a large-scale experiment can provide an estimate of the average causal impact for
a program, the sample of sites included in the experiment is often not drawn randomly from …

Background Anaesthetists have traditionally ventilated patients' lungs with tidal volumes
(TVs) between 10 and 15 ml kg− 1 of ideal body weight (IBW), without the use of PEEP. Over …

Purpose: Outdoor walking groups can facilitate interaction with nature, social interaction,
and physical activity, yet little is known about their efficacy in promoting mental, emotional …