We examine how in-person and virtual interactions shape mutual fund investment decisions using a comprehensive dataset of corporate site visits. Before COVID-19, fund pairs jointly attending in-person visits trade more similarly (by 20% of a standard deviation) than matched controls. The effect holds for stocks unrelated to the hosting firm and appears in firm-level, industry, geographic, and asset allocation decisions; it is stronger among managers with prior familiarity, similar seniority, and mixed gender. Stocks purchased by jointly visiting funds earn higher subsequent returns, indicating that these exchanges convey valuable information. Exploiting the exogenous shift to virtual communication induced by COVID-19, we find that in-person visits remain associated with correlated trading during the pandemic, whereas virtual visits have substantially weaker effects. A survey of fund managers confirms that site visits prompt information exchange, follow-up research, and portfolio adjustments. In-person interactions appear central to information acquisition; and virtual interactions do not easily replicate this function.

Exploiting the first default of a state-owned enterprise (SOE) in China, we analyze the role of implicit government guarantees in credit ratings. We consider two causes of implicit government guarantees. First, we suggest a “too big to fail” effect by revealing positive associations between credit ratings and issuer size, number of employees and taxes paid. Second, we propose a “government link” effect by showing positive associations between credit ratings and an issuer's state ownership, indicators for SOEs and central SOEs. Importantly, after the first SOE default, both dimensions of implicit government guarantees are weakened when explaining credit rating variations. Extending to analyses of yield spreads, we find that debt pricing relies more on credit ratings after the default event, consistent with bond investors weighing credit ratings more with weakened beliefs in implicit government guarantees. Collectively, our study proposes two dimensions of implicit government guarantees in credit ratings and shows how the initial SOE default significantly changes the role of such guarantees in credit ratings.

We examine how information-processing cost affects investors’ acquisition of firm-specific information using a natural experiment resulting from a recent mandate requiring U.S. firms to adopt eXtensible Business Reporting Language (XBRL) when submitting filings to the U.S. Securities and Exchange Commission (SEC). XBRL filings make financial data standardized, tagged, and machine readable. We find that XBRL adoption reduces firms’ stock return synchronicity. The reduction in synchronicity mainly applies to filings under the mandatory program as opposed to the voluntary program. Furthermore, such an effect is more pronounced for opaque and complex firms. Finally, we find that XBRL adoption also reduces price delay.