We study the link between political influence and industrial concentration. We present a joint model of political influence and market competition: an oligopoly lobbies the government over regulation, and competes in the product market shaped by this influence. We show broad conditions for...

We study events in which activist hedge funds and short sellers target the same stock using unique European data on activism and mandatory disclosures of large short positions. The presence of large short sellers is associated with a 22.6% increase in the probability of becoming an activist...

An investor receives utility bursts from realizing gains and losses at the individual-stock level (Barberis and Xiong, 2009, 2012; Ingersoll and Jin, 2013) and dynamically allocates his mental budget between risky and risk-free assets at the trading-account level. Using savings, he reduces his...

We study how vertical firm boundaries shape firms' public disclosures. Theory suggests that firms can use public disclosure to coordinate with supply chain partners, and predicts a substitutive relation between vertical integration and public disclosure about future strategic plans, as vertical...

The assessment of consumer scholarship must move beyond a mere counting of the number of “A”s on a researcher’s CV to include at least some measure of impact. To facilitate a broader assessment of scholarship in consumer research, we provide detailed statistics on the productivity and...

A two-factor model explains returns for a variety of test portfolios, including those based of CAPM beta and those underlying factors in extant pricing models. The two-factor model involves the market factor and a factor based on firms’ fundamentals that has the feature of providing a hedge in...

We investigate how improvements in organizations’ internal communication technology affect their voluntary disclosure, a form of external communication. By developing a model with a headquarters manager and several divisional managers, we formalize two competing economic forces—information...

This paper investigates, theoretically and empirically, the effects of liquidity regulation on the banking system. We document that the current quantity-based liquidity rule has reduced banks' liquidity risks. However, the mandated liquidity buffer appears to crowd out bank lending and lead to a...

This paper formalizes a novel form of corporate insider trading based on non-insider information. In our model, insiders make trading decisions in anticipation of activist intervention. Because insiders have access to private information about firm fundamentals, they can better separate...

Many accounting numbers appear in standard factor models, including book value, investment, return on equity (ROE), and other profitability measures. However, they do so without a clear explanation of why they indicate investment risk. The papers shows that these numbers are generated under...