Key methodologies used for managing weather risks have relied on the assumption that climate is not changing and that the historic weather record is therefore representative of current risks. Anthropogenic climate change upends this assumption, effectively reducing the information available to...

How prevalent are severe software vulnerabilities, how fast do software users respond to the availability of secure versions, and what determines the variance in the installation distribution? Using the largest dataset ever assembled on user updates, tracking server software updates by over...

When AI prediction substantially resolves trial uncertainty, a party purchasing AI prediction will disclose it if it is in their favour and not otherwise, signalling the outcome to the other party. Thus, the trial outcome becomes common knowledge. However, this implies that the parties will...

This paper examines and finds that the answer is likely to be no. The environment examined starts with users who contribute based on their motives to create a public good. Their own actions determine the quality of that public good but also embed a free-rider problem. When AI is trained on that...

It has long been observed that there is little money in U.S. politics compared to the stakes. But what if contributions are not fully observable or non-monetary in nature and thus not easily quantifiable? We study this question with a new data set on the top 1000 donors in U.S. congressional...

The resurgence of subsidies and industrial policies has raised concerns about their potential inefficiency and alignment with multilateral principles. Critics warn that such policies may divert resources to less efficient firms and provoke retaliatory measures from other countries, leading to a...

Donald Trump's campaign speeches have impressed some and outraged others. Yet relatively little is known about how his rhetoric has changed over time and how it compares to that of other politicians, both in the US and abroad. We analyze a monthly series of Trump's public addresses in 2015-24,...

This paper asks how search costs, limited awareness of schools, misperceptions of schools' attributes, and inaccurate beliefs over unknown schools affect families' search and application decisions in Chile's nation wide school choice process. We combine novel data on search activity with a panel...

Individuals of Middle Eastern and North African (MENA) ancestry in the US have been targeted by anti-immigrant and counterterrorism policies and have been the focus of vitriolic political rhetoric. Despite this, lack of data identifying MENA individuals has prevented systematic evaluation of the...