We examine next-day newspaper accounts of large daily jumps in 16 national stock markets to assess their proximate cause, clarity as to cause, and the geographic source of the market-moving news. Our sample of 6,200 market jumps yields several findings. First, policy news – mainly associated...

This paper proposes a way to measure the effect of rising passive ownership on stock price informativeness that does not rely on any particular model. I examine patterns in trading volume, returns and volatility around days we know information is released: earnings announcements. Between 1990...

This paper studies how the introduction of ETFs, and the growth of ETF ownership, can change investors' learning behavior. I develop a rational-expectations model where agents decide (1) whether they want to become informed or not and (2) if informed, how to allocate their limited attention...

No previous infectious disease outbreak, including the Spanish Flu, has impacted the stock market as forcefully as the COVID-19 pandemic. In fact, previous pandemics left only mild traces on the U.S. stock market. We use text-based methods to develop these points with respect to large daily...

We use a new data set to examine the equity price impact of announced cartel investigations. Unlike prior research, we estimate normal returns using the Fama-French (1993) three-factor model. We find that cartel investigation announcements have a long-lasting negative share-price effect of two...