We investigate how board overlap affects coordination and performance among public firms. Our identification exploits the staggered introduction of Corporate OpportunityWaivers (COWs) in nine U.S. states since 2000. By reducing legal risk to directors serving on multiple boards, the COW...

Policymakers fear artificial intelligence (AI) will disrupt labor markets, especially for high-skilled workers. We investigate this concern using novel, task-specific data for security analysts. Exploiting variation in AI's power across stocks, we show analysts with portfolios that are more...

Using textual analysis and comparing cybersecurity-risk disclosures of firms that were hacked to others that were not, we propose a novel firm-level measure of cybersecurity risk for all US-listed firms. We then examine whether cybersecurity risk is priced in the cross-section of stock returns....

Whether proprietary traders provide or take liquidity, and how their behavior evolves over the business cycle and across stocks, remains at the center of an ongoing debate. Using a unique dataset from the NYSE, we document that proprietary traders concentrate their trades in large and liquid...

Using novel data on firms' government relations staff, and two distinct empirical settings, we show that political activism enables firms to grow their market power. The documented increases in profit margins and market share persist for up to two years, and are concentrated among large...

Using the passage of Global Settlement as an exogenous shock, we show that disclosure requirements about analysts' recommendation distributions incentivize analysts to manage their recommendation distributions to reduce concerns about perceived objectivity. Following the regulation, analysts...

Using the introduction of high-speed rail (HSR) as an exogenous shock to costs of information acquisition, we show that reductions in information-acquisition costs lead to (i) a significant increase in information production, evidenced by a higher frequency of analysts visiting portfolio firms,...

In the last two decades, over 75% of U.S. industries have experienced an increase in concentration levels. We find that firms in industries with the largest increases in product market concentration have enjoyed higher profit margins and more profitable M&A deals. At the same time, we do not...

While consumers nominally pay the consumption tax, theoretical and empirical evidence is mixed on whether corporations partly shoulder this burden, thereby, affecting corporate investment. Using a quasi-natural experiment, we show that consumption taxes decrease investment. Firms facing more...

The regulator plays an active role in the IPO process via its pre-IPO communications with firms, writing 3.8 comment letters per company. To evaluate the regulator's input, we analyze these communications between the SEC and firms using LDA-analysis and KL-divergence. Main topics of SEC concerns...