ABSTRACT We develop a model of monetary policy with two key features: the central bank has private information about its long‐run target rate and is averse to bond market volatility. In this setting, the central bank gradually impounds changes in its target into the policy rate. Such gradualism represents an attempt to not spook the bond market. However, this effort is partially undone in equilibrium, as markets rationally react more to a given move when the central bank moves more gradually. This time‐consistency problem means that society would be better off if the central bank cared less about the bond market.

ABSTRACT Many natural competitors are jointly held by a small set of large institutional investors. In the U.S. airline industry, taking common ownership into account implies increases in market concentration that are 10 times larger than what is “presumed likely to enhance market power” by antitrust authorities. Within‐route changes in common ownership concentration robustly correlate with route‐level changes in ticket prices, even when we only use variation in ownership due to the combination of two large asset managers. We conclude that a hidden social cost—reduced product market competition—accompanies the private benefits of diversification and good governance.

ABSTRACT Using a novel data set of U.S. financial advisors that includes individuals' employment histories and misconduct records, we show that coworkers influence an individual's propensity to commit financial misconduct. We identify coworkers' effect on misconduct using changes in coworkers caused by mergers of financial advisory firms. The tests include merger‐firm fixed effects to exploit the variation in changes to coworkers across branches of the same firm. The probability of an advisor committing misconduct increases if his new coworkers, encountered in the merger, have a history of misconduct. This effect is stronger between demographically similar coworkers.

ABSTRACT Short sellers face unique risks, such as the risk that stock loans become expensive and the risk that stock loans are recalled. We show that short‐selling risk affects prices among the cross‐section of stocks. Stocks with more short‐selling risk have lower returns, less price efficiency, and less short selling.