Can managers influence the liquidity of their shares? We use plausibly exogenous variation in the supply of public information to show that firms seek to actively shape their information environments by voluntarily disclosing more information than is mandated by market regulations and that such...

Can managers influence the liquidity of their shares? We use plausibly exogenous variation in the supply of public information to show that firms seek to actively shape their information environments by voluntarily disclosing more information than is mandated by market regulations and that such...

Theoretical asset pricing models routinely assume that investors have heterogeneous information. We provide direct evidence of the importance of information asymmetry for asset prices and investor demands using plausibly exogenous variation in the supply of information caused by the closure of...

A new covariance matrix estimator is proposed under the assumption that at every time period all pairwise correlations are equal. This assumption, which is pragmatically applied in various areas of finance, makes it possible to estimate arbitrarily large covariance matrices with ease. The model,...

A conspicuous amount of aggregate tail risk is missing from the price of financial sector crash insurance during the 2007-2009 crisis. The difference in costs of out-of-the-money put options for individual banks, and puts on the financial sector index, increases fourfold from its pre-crisis...

We document widespread ex post changes to the historical contents of the I/B/E/S analyst stock recommendations database. Across a sequence of seven downloads of the entire I/B/E/S recommendations database, obtained between 2000 and 2007, we find that between 6,594 (1.6%) and 97,579 (21.7%) of...

We document that firms appear disinclined to share underwriters with other firms in the same industry. We show that this disinclination is evident only when firms engage in product-market competition. This leads us to suggest that concerns about information leakage may motivate thepatterns we...

We investigate why banks pressured research analysts to provide aggressive assessments ofissuing firms during the 1990s. This competitive strategy did little to directly increase a bank s chances of winning lead-management mandates and ultimately led to regulatory penalties and costly structural...

We document that firms appear disinclined to share underwriters with other firms in the same industry. We show that this disinclination is evident only when firms engage in product-market competition. This leads us to suggest that concerns about information leakage may motivate the patterns we...

We document that firms appear disinclined to share underwriters with other firms in the same industry. We show that this disinclination is evident only when firms engage in product-market competition. This leads us to suggest that concerns about information leakage may motivate the patterns we...