We study the relation between the presence of superstar firms and college students' major choice. Salient occurrences of superstar performers in an industry are followed by a sharp rise in the number of college students choosing to major in related fields. This cohort effect remains significant...

We study the emergence of satellite imagery of parking lot traffic across major retailers as a source of alternative data in capital markets. While satellite imagery signals embed timely information for quarterly earnings announcements, stock prices do not incorporate this information prior to...

What makes an asset institutional-quality? This paper proposes that one reason is the existing concentration of delegated investors in a market through a liquidity channel. Consistent with this intuition, it documents differences in investor composition across US cities and shows that delegated...

We investigate the impact of local agglomeration economies on household portfolio choice. Using detailed location and employment data from two U.S. household surveys, we document that individuals who work in locally agglomerated industries are more likely to invest in risky assets. This pattern...

We test the hypothesis that retail investors' attraction to lottery stocks induces overvaluation, and is amplified by high attention and social interactions. The lottery premium (negative abnormal returns) is stronger for high-retail-ownership stocks—especially those that also have high...

Nominal stock prices are arbitrary. Therefore, when evaluating how a piece of news should affect the price of a stock, rational investors should think in percentage rather than dollar terms. However, dollar price changes are ubiquitously reported and discussed. This may both cause and reflect a...

I use a unique data set from investor centric social media site StockTwits to test the Hong and Stein (1999) two trader theory of momentum against Daniel, Hirshleifer, and Subrahmanyam (1998) self attribution theory. Tests of individual securities and portfolios produce results which are largely...