This paper constructs a high-frequency, news-based measure of rare earth supply shocks to examine how disruptions in these critical inputs affect global firm valuations. Using news articles between 2021 and 2025, I identify exogenous rare earth supply events, distinguishing between Chinese...

Quality ratings are useful when they capture important and durable aspects of overall performance. They are less useful (and can be misleading) when they are excessively volatile, particularly if volatility is not the result of facility-specific performance. We study the volatility of the...

Firms often choose with whom to compete and how similar or how different their products should be relative to those of their rivals. This paper investigates this issue in the app economy by studying the determinants of mobile app success. We leverage natural language processing and unsupervised...

This working paper highlights the achievements of the Cypriot diplomacy and Nicosia's proactive engagement in the developments of the Eastern Mediterranean in the last two decades. Though this small island state has navigated a series of vicissitudes throughout its history, it has proven to be...

This working paper highlights the achievements of the Cypriot diplomacy and Nicosia's proactive engagement in the developments of the Eastern Mediterranean in the last two decades. Though this small island state has navigated a series of vicissitudes throughout its history, it has proven to be...