Experiments should be designed to facilitate the detection of experimental measurement error. To this end, the authors advocate the implementation of identical experimental protocols employing diverse experimental modes. They suggest iterative nonparametric estimation techniques for assessing the magnitude of heterogeneous treatment effects across these modes. They propose two diagnostic strategies—measurement metrics embedded in experiments, and measurement experiments—that help assess whether any observed heterogeneity reflects experimental measurement error.

The parliamentary authorities have taken the view that because the Supreme Court has quashed the prorogation of Parliament, everything else done by the Royal Commission in the morning of 10 September has been quashed as well. Accordingly, both the Speaker of the House of Commons and the Lord Speaker have indicated that Royal Assent for the Restoration and Renewal Bill would need to be signified again. This paper argues that the Speakers have wrongly understood the Supreme Court’s judgment in this respect.

Cybersecurity experts foster a perception of cybersecurity as a gloomy underworld in which the good guys must resort to unconventional tactics to keep at bay a motley group of threats to the digital safety of unsuspecting individuals, businesses, and governments. Research Affiliate James Shires' new article, published in Contemporary Security Policy, takes this framing seriously, drawing on film studies scholarship that identifies certain aesthetic themes as associated with moral ambiguity in noir films.

How does the oil wealth of a potential target state affect the likelihood of the US public favoring the use of military force? Recent studies suggest that public opinion on foreign policy is responsive to the core characteristics of target states, such as regime type and majority religion. This article advances this research agenda by examining the effects of intra-regime heterogeneity in respect of an important characteristic of target states: their oil wealth.

The global diffusion of Chinese and Russian information control technology and techniques has featured prominently in the headlines of major international newspapers. Few stories, however, have provided a systematic analysis of both the drivers and outcomes of such diffusion. Research Affiliate Valentin Weber's new paper does so – and finds that these information controls are spreading more efficiently to countries with hybrid or authoritarian regimes, particularly those that have ties to China or Russia.

Claims to self-determination are rife in world politics today. They range from Scottish and Catalonian campaigns for independence to calls for the devolution of power to regions and cities. But what does self-determination actually mean? Is it meaningful or desirable in the 21st century, or merely a dangerous illusion?

Clientelism is a type of nonprogrammatic linkage strategy that political parties deploy to win elections. Specifically, the concept refers to the personalized and discretionary exchange of goods or favors for political support. Scholars of comparative politics investigate variation in the prevalence of clientelism across countries, as well as the organizations that parties create to distribute personalized gifts and favors. A large body of work also studies the types of voters more commonly targeted by machines.

The Senkaku/Diaoyu Islands are presently the focus of a dangerous contest between the People’s Republic of China and Japan, one that even now has the potential to spark a military conflict that could draw in the United States. How has this come about? Whether seen from a strategic, economic, or historical perspective, the value of the islands does not appear to merit the risks of such a contest.