By considering investor order placement strategy, this paper demonstrates that transaction costs cause bid-ask spreads to be an equilibrium property of asset markets. With transaction costs, the probability of a limit order executing does not go to unity as the order is placed infinitesimally close to a counterpart market quote; thus, with certainty of execution at the counterpart market quote, a "gravitational pull" is generated that keeps counterpart quotes from being placed infinitesimally close to each other. An equilibrium spread is defined and its size linked to market thinness; implications are noted for the design of a trading system.

Both under- and over-treatment of communicable diseases are public bads. But efforts to decrease one run the risk of increasing the other. Using rich experimental data on household treatment-seeking behavior in Kenya, we study the implications of this trade-off for subsidizing life-saving antimalarials sold over-the-counter at retail drug outlets. We show that a very high subsidy (such as the one under consideration by the international community) dramatically increases access, but nearly one-half of subsidized pills go to patients without malaria. We study two ways to better target subsidized drugs: reducing the subsidy level, and introducing rapid malaria tests over-the-counter. (JEL D12, D82, I12, O12, O15)

Using a novel database that tracks web traffic on the Security Exchange Commission's EDGAR server between 2004 and 2015, we show that institutional investors gather information on a very particular subset of firms and insiders, and their surveillance is very persistent over time. This tracking behavior has powerful implications for their portfolio choice and its information content. An institution that downloaded an insider trading filing by a given firm last quarter increases its likelihood of downloading an insider trading filing on the same firm by more than 41.3 percentage points this quarter. Moreover, the average tracked stock that an institution buys generates annualized alphas of over 12% relative to the purchase of an average non tracked stock. We find that institutional managers tend to track top executives and to share educational and locational commonalities with the specific insiders they choose to follow. Collectively, our results suggest that the information in tracked trades is important for fundamental firm value and is only revealed following the information-rich dual trading by insiders and linked institutions.

ABSTRACT We examine whether the complexity of mandatory accounting disclosures prompts managers to voluntarily disclose adjusted measures of actual earnings performance, and whether this practice reflects attempts to obfuscate or mitigate the informational opacity accounting complexity creates for investors. Using the metadata in XBRL filings, we construct measures of accounting complexity that map directly to the mandated standards applied in financial statement filings. We find a positive and economically significant association between accounting complexity and managers’ propensity to disclose non-GAAP earnings information. This relation is robust and incremental to common measures of business and linguistic complexity, and the transitory nature of firms’ economic activities. We also find that the quality and informativeness of adjusted earnings information increases with accounting complexity, consistent with motives to better inform investors when accounting disclosures are complex. Overall, our results suggest that managers use non-GAAP earnings disclosure to mitigate the adverse informational effects of accounting complexity. Data Availability: All data are available from sources identified in the paper. JEL Classifications: M41; M43.

ABSTRACT Using the complete history of regular quarterly and annual filings by U.S. corporations, we show that changes to the language and construction of financial reports have strong implications for firms’ future returns and operations. A portfolio that shorts “changers” and buys “nonchangers” earns up to 188 basis points per month in alpha (over 22% per year) in the future. Moreover, changes to 10‐Ks predict future earnings, profitability, future news announcements, and even future firm‐level bankruptcies. Unlike typical underreaction patterns, we find no announcement effect, suggesting that investors are inattentive to these simple changes across the universe of public firms.

ABSTRACT Prior evidence shows a reduction in leverage after covenant violations, but we do not know whether covenants affect leverage before they are violated. In this study, we use an exogenous accounting-based shock to debt covenants that relaxed covenant tightness (SFAS 160) and examine whether covenants constrain leverage for borrowers that are close to violation, even when the borrower is financially healthy. We find that SFAS 160 increased debt levels in firms that were close to violation. This increase in debt was driven by financially healthy firms, suggesting the likelihood of future covenant violations could impede borrowing by firms. We also find an increase in investment sensitivity to Q after SFAS 160 in firms close to violation, suggesting the additional debt was used to make legitimate investments. Because SFAS 160 was passed in the midst of the financial crisis, it is difficult to generalize our findings to more normal financial periods. JEL Classifications: G01; G30; G31; G33; M21; M41.

We use public finance sufficient statistic approaches to characterize the welfare effects of “nudges,” such as simplified information and warning labels, in markets with taxes and endogenous prices. While many studies focus on average effects, we show that welfare also depends on how the nudge affects the variance of choice distortions, and average effects become irrelevant with zero pass-through or optimal taxes. We implement the framework with experiments evaluating automotive fuel economy labels and sugary drink health labels. Labels decrease purchases of low-fuel economy cars and sugary drinks but may decrease welfare because they increase the variance of choice distortions. (JEL D18, D62, D83, D91, H21, L62, L66)

ABSTRACT We provide evidence that bond fund managers misclassify their holdings, and that these misclassifications have a real and significant impact on investor capital flows. The problem is widespread, resulting in up to 31.4% of funds being misclassified with safer profiles, compared to their true, publicly reported holdings. “Misclassified funds”—those that hold risky bonds but claim to hold safer bonds—appear to on‐average outperform lower risk funds in their peer groups. Within category groups, misclassified funds receive more Morningstar stars and higher investor flows. However, when we correctly classify them based on actual risk, these funds are mediocre performers.