The effect of retaliation costs on employee whistleblowing

We use large increases in unemployment insurance (UI) benefits to study the effects of expected retaliation costs on employee whistleblowing. Increases in UI benefits reduce the costs that arise from a job loss, one of the costliest forms of retaliation. We find that increases in UI benefits increase the number of facility-level employee workplace safety complaints filed with the regulator. Furthermore, UI benefit increases also result in more violations and more penalties. The effects are concentrated in firms where retaliation is more likely as measured by weaker employee relations, internal controls, and monitoring. Our findings show the importance of reducing retaliation costs to tap into employees’ knowledge of misconduct.     

Institutional investor inattention and audit quality

We hypothesize and provide empirical evidence that higher institutional investor inattention is associated with lower audit quality. We employ an inattention measure that captures the extent to which institutional investors are distracted by attention-grabbing events irrelevant to the focal firm. Results suggest that a higher degree of institutional investor inattention is associated with a lower propensity of a going-concern opinion, a lower probability of the auditor reporting a material internal control weakness, and a higher likelihood of the audit client misstating the financial statements. Further analyses show that these associations vary by auditor litigation risk, their workload pressure, auditor industry expertise, and analyst coverage. Overall, our findings reveal that while institutional investors play an important monitoring role, the distractions they face undermine the quality of monitoring they provide.     

基于C/A码辅助的GPS M码信号盲解调

针对GPS M码信号受到C/A码和Y码信号的干扰难以直接进行解调的问题,提出了一种基于C/A码辅助的M码盲解调方法。利用解调后的C/A码信号校正信号频偏,通过I/Q支路分离实现将C/A码信号与Y码、M码信号的剥离,最后利用M码信号的特点进行相参增强进一步提高性能。实采数据的解调实验证明了所提算法的可行性。     

Alcohol Tax,Price–Quality Proxy and Discounting: A Reason Why Alcohol Taxes May Rebound

The increasing concern about the external costs of alcohol consumption has often led economists and policy‐makers to advocate taxes to internalise the social costs and target consumption. However, in certain markets for alcoholic drinks – particularly wine – price is not only a cost but also an indicator of quality, guiding consumer choice. There is, perhaps, a higher probability of ex post satisfaction with products at higher prices in a market with potential adverse selection. The price–quality proxy interacts with discounts, where the full price of the product before discount (referred to as the External Reference Price in the marketing literature) is used as a quality reference. This study shows that an alcohol tax in the presence of discounting may increase the perceived value of the product, and therefore persuade consumers to prefer the purchase of more expensive wines with the highest discount. As a consequence, consumers could favour products with higher alcohol content – which contradicts the objectives of the policy. Consequently, for an alcohol tax to be effective discounting of alcoholic beverages (in particular, wine) should be regulated to avoid the policy backfiring.     

Money shouts! How effective are punishments for accounting fraud?

This study examines the impact of different punishments for Chinese accounting fraud on shareholder valuation of firms between 2007 and 2016. From an examination of both monetary and non-monetary ‘name and shame’ penalties, it is reported all punishments have a negative and significant impact on the shareholder wealth of fraudulent firms. Investors perceive punishments involving monetary penalties far more severely than non-monetary punishments used to combat accounting fraud. Stock market reactions are also sensitive to the type of fraud committed with manipulation of recognition and disclosure fraud viewed more negatively by investors than fraud related to disclosure. Information leakage to capital markets prior to the announcement of punishments is also observed. It is proposed fines have been relatively more effective, than ‘name and shame’ punishments in addressing Chinese accounting fraud during the last decade, due not least to information leakage.     

Investor communication and the benefits of cross-listing

While studies have sought to explain the benefits of cross-listing, little attention has been paid to the role of communication between managers and investors during this process. In this paper, I investigate whether managers change communication policies around U.S. cross-listings. I document significant increases in communication when firms cross-list. I then test whether these investor communication practices around cross-listing are associated with capital market benefits. I find that cross-listed firms that communicate more with investors experience greater and longer lasting cross-listing benefits. Lastly, I explore two potential reasons that may lead managers to choose higher levels of communication: to support an increase in investor recognition and to facilitate monitoring. I find results consistent with communication increasing visibility and scrutiny, suggesting that communication functions as a supporting tool to achieve managers’ cross-listing goals.     

Detecting Accounting Fraud in Publicly Traded U.S. Firms Using a Machine Learning Approach

We develop a state-of-the-art fraud prediction model using a machine learning approach. We demonstrate the value of combining domain knowledge and machine learning methods in model building. We select our model input based on existing accounting theories, but we differ from prior accounting research by using raw accounting numbers rather than financial ratios. We employ one of the most powerful machine learning methods, ensemble learning, rather than the commonly used method of logistic regression. To assess the performance of fraud prediction models, we introduce a new performance evaluation metric commonly used in ranking problems that is more appropriate for the fraud prediction task. Starting with an identical set of theory-motivated raw accounting numbers, we show that our new fraud prediction model outperforms two benchmark models by a large margin: the Dechow et al. logistic regression model based on financial ratios, and the Cecchini et al. support-vector-machine model with a financial kernel that maps raw accounting numbers into a broader set of ratios.     

Value creation around merger waves: The role of managerial compensation

This paper examines the relation between executive compensation and value creation in merger waves. The sensitivity of CEO wealth to firm risk increases the likelihood of out-of-wave merger transactions but has no influence on in-wave merger frequency. CEOs with compensation linked to firm risk have better out-of-wave merger performance in comparison to in-wave mergers. We also present evidence that cross-sectional acquirer return dispersion is greater for in-wave acquisitions. Our results suggest that the underperformance of acquiring firms during merger waves can be attributed in part to ineffective compensation incentives, and appropriate managerial incentives can create value, particularly in non-wave periods.     

Supply chain finance and impacts of consumers’ sustainability awareness

Several new methods have been proposed for supply chain finance (SCF) with bank credits, but none of them mentions how to solve the borrowers’ moral hazard problems in SCF. This paper examines the moral hazard problem in supply chain financing with procurement contract (or purchase order). We show that since supply chain is an up-down directed structure, when financing with the procurement contract, the supplier’s effort monitoring task can be rendered to the procurement contract, which can secure the supplier’s optimal effort and capital choices in production. Hence, compared to separate lending, the supplier’s credit rationing problem can be mitigated, and most importantly, banks’ under-estimation on the supplier’s default risk and the over-estimation on the retailer’s default risk will both decrease. We further show that the retailer’s corporate social responsibility expenditure can increase consumers’ brand recognition, thus when facing demand shocks arising from consumer’s unexpected concerns, the retailer can better stabilize the firm value.     

The Effects of Analyst‐Country Institutions on Biased Research: Evidence from Target Prices

Prior research demonstrates that a strong institutional infrastructure in a country moderates self‐serving behavior of market participants. Cross‐country economic activities have increased significantly, presenting a research opportunity to examine the relative influence of local versus foreign institutional infrastructure on individual market participants. We utilize variation in analyst‐country location relative to covered firm location to examine institutional determinants of optimism in analyst research. Focusing on target prices, where persistent optimism is well documented, we find that analysts domiciled in countries with stronger institutional infrastructures exhibit significantly attenuated target price optimism and more value‐relevant target prices. Our results demonstrate the importance of domestic country‐level institutional factors in moderating self‐serving behavior of market participants engaged in cross‐country activities.