Corporate tax avoidance and stock price crash risk: Firm-level analysis

Using a large sample of U.S. firms for the period 1995–2008, we provide strong and robust evidence that corporate tax avoidance is positively associated with firm-specific stock price crash risk. This finding is consistent with the following view: Tax avoidance facilitates managerial rent extraction and bad news hoarding activities for extended periods by providing tools, masks, and justifications for these opportunistic behaviors. The hoarding and accumulation of bad news for extended periods lead to stock price crashes when the accumulated hidden bad news crosses a tipping point, and thus comes out all at once. Moreover, we show that the positive relation between tax avoidance and crash risk is attenuated when firms have strong external monitoring mechanisms such as high institutional ownership, high analyst coverage, and greater takeover threat from corporate control markets.     

Major government customers and stock price crash risk

This paper studies whether government’s participation in product market, as a customer, affects supplier firms’ stock price crash risk. Using a sample of U.S. firms from 1980 to 2015, we find robust evidence that the presence of major government customers is associated with a lower level of stock price crash risk for supplier firms. Further, we show that government customers can lower suppliers’ crash risk by imposing monitoring activities on suppliers and/or reducing suppliers’ operational risk, leading to a reduction in supplier managers’ bad news hoarding behavior. Overall, our results indicate that government spending, as an important public policy, can significantly affect shareholders’ value by mitigating stock price crash risk.     

Accruals and price crashes

I investigate the relation between accruals and firm-level price crashes, representing extreme price decreases in weekly returns. I find that high accruals predict a higher price crash probability than low accruals. This finding can be explained by managers’ use of income-increasing accrual estimates to hoard bad news. Once accumulated bad news crosses a tipping point, it is released all at once and results in a price crash. Consistent with this explanation, I find the observed relation to be the strongest for operating assets (the least reliable accrual components). Cross-sectional analyses further support the bad news hoarding explanation.     

Does societal trust make managers more trustworthy?

This study examines the effects of shareholders' trust on managers' bad news hoarding. Using a large sample of listed firms from 33 countries, we find that firms domiciled in countries with higher societal trust have higher stock price crash risk, which indicates that managers may exploit shareholders' trust to conceal bad news and that a low-trust society can be beneficial in restraining management misconduct due to the monitoring undertaken by low-trust outsiders. We also find that the positive association between societal trust and crash risk is less pronounced (1) when low-trust foreign shareholders have greater control over a country's firms, in line with the view that low-trust shareholders' concerns about being expropriated by managers and the consequent strong efforts at monitoring; (2) when long-term investors have greater control over a country's firms, suggesting that long-term investors playing a complementary role in monitoring corporate governance; and (3) when a country has strong formal institutions, such as investor protection and financial accounting systems, suggesting that robust formal institutions are substitute for social norms.     

Short-sale constraints and stock price crash risk: Causal evidence from a natural experiment

We examine the relation between short-sale constraints and stock price crash risk. To establish causality, we take advantage of a regulatory change from the Securities and Exchange Commission (SEC)’s Regulation SHO pilot program, which temporarily lifted short-sale constraints for randomly designated stocks. Using Regulation SHO as a natural experiment setting in which to apply a difference-in-differences research design, we find that the lifting of short-sale constraints leads to a significant decrease in stock price crash risk. We further investigate the possible underlying mechanisms through which short-sale constraints affect stock price crash risk. We provide evidence suggesting that lifting of short-sale constraints reduces crash risk by constraining managerial bad news hoarding and improving corporate investment efficiency. The results of our study shed new light on the cause of stock price crash risk as well as the roles that short sellers play in monitoring managerial disclosure strategies and real investment decisions.     

Operating cash flow opacity and stock price crash risk

We examine the relation between operating cash flow (OCF) opacity and stock price crash risk. We find that OCF opacity is positively associated with future stock price crash risk after controlling for accruals opacity and other determinants known to influence crash risk. This finding suggests that OCF opacity facilitates bad news hoarding and enables managerial resource diversion, which in turn increases crash risk. We also find that the positive relation between OCF opacity and crash risk is more pronounced when external monitoring is weak, information asymmetry is high, OCF importance is low, and cost of accruals management is high. Overall, our evidence highlights the severe consequence of OCF opacity in that it boosts crash risk; our study should alert the researchers, investors, and regulators to pay more attention to OCF management.     

Social media information dissemination and corporate bad news hoarding

This paper investigates the role of social media in mitigating corporate bad news hoarding from a stock price crash risk perspective. Using a sample of public listed firms from 2008–2019, we find that social media (Guba) posts could significantly reduce firms’ stock price crash risks in the Chinese stock market. Furthermore, we find that the information intermediation function and complementary corporate governance function enable Guba to achieve such an effect. In addition, investor attention mediates the relationship between Guba posts and management withholding bad news. Our result still holds after a series of robustness checks, including an RDD approach.     

The winner's curse in high-tech enterprise certification: Evidence from stock price crash risk

Exploiting the High and New Technology Enterprise (HNTE) certification program in China, we find a significant increase in firm-specific stock price crash risk for certified firms relative to non-certified firms. The result holds after a battery of robustness tests. Importantly, we find that the increase in stock price crash risk is concentrated in firms with poor innovation records before receiving HNTE certification, with less innovation improvement after obtaining HNTE certification, with weak external governance, and for state-owned enterprises. Our findings uncover a novel and substantial cost of HNTE certification as it can stimulate strategic bad news hoarding and release, being associated with greater crash risk, especially for firms less likely to engage in fact-based innovation.     

Does media coverage deter firms from withholding bad news? Evidence from stock price crash risk

Spurred by the informational and disciplinary roles that the media fulfils, this study provides initial evidence on how higher media coverage is associated with a lower tendency of firms withholding bad news, proxied by stock price crash risk. Our main findings are robust to a battery of tests that account for endogeneity concerns including a difference-in-differences analysis based on newspaper closures that exogenously reduce media coverage and a regression-discontinuity design analysis based on the top band of Russell 2000 and lower band of Russell 1000 index stocks. Additional tests reveal that the negative relation between media coverage and stock price crash risk is concentrated within firms with more negative and novel news coverage and firms with higher litigation or reputation risks. We also find that media plays an important role in reducing future stock price crash risk when there is reduced monitoring by other external monitoring mechanisms such as external auditors, financial analysts, and institutional shareholders.     

金融同业活动与实体企业经营风险——来自地区层面同业存单业务的证据

本文研究了地区层面金融同业活动对实体企业经营风险的影响。基于各省份金融机构开启同业存单业务的研究表明,地区层面金融同业活动显著提升了当地上市企业股价大幅下跌的风险。进一步研究表明,随着同业存单业务的发展,当地上市企业债务融资成本和风险水平有所上升,而业绩表现和市场价值有所下降。上述发现表明,企业融资链条变长后,信贷市场道德风险上升,部分企业因风险偏好增强导致经营风险上升,更容易突然出现负面事件而导致股价大幅下跌。本文的发现揭示了金融同业活动存在监管规避的可能性及其影响实体企业的潜在路径,凸显了完善金融监管以更好服务实体经济发展的重要现实意义。     

金融同业活动与实体企业经营风险——来自地区层面同业存单业务的证据

本文研究了地区层面金融同业活动对实体企业经营风险的影响。基于各省份金融机构开启同业存单业务的研究表明,地区层面金融同业活动显著提升了当地上市企业股价大幅下跌的风险。进一步研究表明,随着同业存单业务的发展,当地上市企业债务融资成本和风险水平有所上升,而业绩表现和市场价值有所下降。上述发现表明,企业融资链条变长后,信贷市场道德风险上升,部分企业因风险偏好增强导致经营风险上升,更容易突然出现负面事件而导致股价大幅下跌。本文的发现揭示了金融同业活动存在监管规避的可能性及其影响实体企业的潜在路径,凸显了完善金融监管以更好服务实体经济发展的重要现实意义。     

Audit firm's Confucianism and stock price crash risk: Evidence from China

This study examines the association between audit firm's Confucianism and stock price crash risk. We postulate that Confucian moral standards predict a mixed relationship between audit firm's Confucianism and stock price crash risk. Using a large sample of listed firms in China during 2006–2018, we find that audit firm's Confucianism is positively related with client's future stock price crash risk, implying that Confucianism of audit firm aggravates client's bad news hoarding behavior. The effect is more pronounced for client without female auditors and/or with closer personal relationship with auditors. Mechanism analysis shows that audit firm's Confucianism exacerbates crash risk by worsening audit quality and information transparency. Political discipline and external monitoring help to alleviate the negative influence of audit firm's Confucianism on stock price crash risk.     

Does online interaction between firms and investors reduce stock price crash risk?

This paper examines how online interaction between firm management and investors impacts stock price crash risk. Based on the previous literature, we postulate that online interaction constrains crash risk via two channels, i.e., deterring bad news hoarding activities of managers and decreasing differences of opinion among investors. Relying on the launch of Hudongyi (the first official investor relations management platform in the world) for identification, we demonstrate that online firm-investor interaction significantly reduces future stock price crash risk and that these two channels can both explain this effect. Overall, our findings highlight the important role of online interaction in risk management.     

Chief financial officer overconfidence and stock price crash risk

Numerous studies have shown the prevalence of overconfidence among Chief Financial Officers (CFOs). Surprisingly, the real effect of CFO overconfidence is under-researched. Using data from a large sample of US-listed firms over the period 1993–2019 and adopting an eclectic theoretical approach, we find that overconfident CFOs are more likely to increase stock price crash risk than non-overconfident CFOs through risk-taking and bad news hoarding. These findings pass a series of robustness tests. Furthermore, departing from most overconfident studies that merely examine one type of top managers (i.e., Chief Executive Officer (CEO)), we consider the influence of CEO and CFO overconfidence jointly. Interestingly, we find that CFO overconfidence outweighs CEO overconfidence in influencing stock price crash risk. Moreover, the overconfidence effect is intensified when overconfident CFOs collaborate with overconfident CEOs, thus raising stock price crash risk. However, stronger governance and a transparent information environment constrain overconfident CFOs' effect on stock price crash risk. Overall, our findings highlight the importance of CFO overconfidence in determining stock return tail risks.     

Does takeover activity affect stock price crash risk? Evidence from international M&A laws

We exploit the staggered initiation of merger and acquisition (M&A) laws across countries as a plausibly exogenous shock to the threat of takeover to examine whether the market for corporate control has a real effect on firm-level stock price crash risk. Using a difference-in-differences regression on a large sample of firms from 32 countries, we find that stock price crash risk significantly decreases following the passage of M&A laws. This effect is stronger for firms domiciled in countries with poorer investor protection and information environments and for firms with weaker firm-level governance. Further, financial reporting opacity and overinvestment significantly decrease in the post-M&A law periods. Our study suggests that an active takeover market has a disciplining effect on managerial bad news hoarding and leads to lower future crash risk.     

Why Muddy the Water? Short selling and the disclosure of proprietary information

The conventional wisdom of voluntary disclosure literature is that the major factor preventing firms from disclosing customer-related information is firms' concern for proprietary costs. However, non-disclosure may also happen when firms have bad news to hide and are concerned about short sellers using customer information to verify bad news about the firms. By implementing a difference-in-differences research design against the backdrop of the deregulation of short selling in China, we find that increased short-selling pressure discourages firms from disclosing the identities of major customers. The findings also reveal consistent evidence supporting the bad news hoarding hypothesis rather than the proprietary cost hypothesis. Overall, our study provides an alternative explanation for firms’ lack of disclosure of customer information.     

Pledgee competition,strategic disclosure,and future crash risk

We investigate whether pledgee competition affects the disclosure choice of firms whose controlling shareholders pledge their shares. We find that pledgee competition is positively related to pledge firms’ annual report tone management. This positive relationship is stronger for pledge firms with lower credit quality and non-state-owned enterprise pledge firms. Further corroborating our results, higher pledgee competition increases the future crash risk of pledge firms. Collectively, our results suggest that competition pressure induces pledgees to lower their monitoring incentives to remain competitive in the marketplace, thus leading to pledge firms’ bad news hoarding behavior.     

Stock price crash risk and internal control weakness: presence vs. disclosure effect

This study examines the stock price crash risk for a sample of firms that disclosed internal control weaknesses (ICW) under Section 404 of the Sarbanes‐Oxley Act (SOX). We find that in the year prior to the initial disclosures, ICW firms are more crash‐prone than firms with effective internal controls. This positive relation is more pronounced when weakness problems are associated with a firm's financial reporting process. More importantly, we find that stock price crash risk reduces significantly after the disclosures of ICWs, despite the disclosure itself signalling bad news. The above results hold after controlling for various firm‐specific determinants of crash risk and ICWs. Using an ICW disclosure as a natural experiment, our study attempts to isolate the presence effect of undisclosed ICWs from the initial disclosure effect of internal control weakness on stock price crash risk. In so doing, we provide more direct evidence on the causal relation between the quality of financial reporting and stock price crash risk.     

Stakeholders and the stock price crash risk: What matters in corporate social performance?

This study provides evidence for the differential impacts of corporate social responsibility (CSR) initiatives targeting different stakeholder groups on stock price crash risk. In particular, it highlights CSR's role in mitigating risk and creating shareholder value. Our results reveal that managerial bad news hoarding and the resultant stock crashes are largely determined by the social CSR dimension, and this effect is predominantly seen in undervalued firms. Moreover, social CSR subcategories aimed at specific stakeholder groups (such as the community, employees, or customers) tend to mitigate future crashes. In contrast, firms' environmental initiatives and governance characteristics seem to have trivial effects on stock crashes. Using a quasi-natural experiment, we find that the mitigating effect of social CSR dimension on crash risk is likely to be causal.     

Does Modern Information Technology Attenuate Managerial Information Hoarding? Evidence from the EDGAR Implementation

Exploiting the staggered implementation of the EDGAR system from 1993 to 1996 as exogenous shocks to information dissemination technologies, we document that faster dissemination of corporate disclosures through the internet increases firms' future stock price crash risk. These results are robust to alternative sample constructions, measures of crash risk, and fixed effects. Supplemental evidence suggests two channels: an increase in stock liquidity and an increase in investors' reliance on public disclosure, both of which exacerbate managers' incentives to withhold bad news. Overall, our findings suggest that modern information technology may have an unintended effect on managers' bad news hoarding behavior.