R&D investment can reduce costs through efficient production technology, which has a positive (+) impact on future performance. On the other hand, R&D investment has uncertainty due to characteristics such as time lag, high cost and non-appropriability. We examine whether the effects of R&D expenditures on future performance and earnings uncertainty are different according to firm life cycle, which reflects the differences in the environment, circumstances, and strategy of the firm. Investors assess sustainable growth potential of the enterprise in the capital market, reflecting the future performance and the uncertainty of the firm. This implies that R&D investment can affect the capital market through investors’ future expectations for sustainable growth of the company. We also examine the differential effects of R&D expenditures on market response by the firm life cycle. The test results show that firm life cycle differentially affects the relation between R&D expenditures and future performance and uncertainty. Further, the market response varies over the firm life cycle. Our results provide suggestions that R&D investments should be made properly considering the environment and circumstances of the firm. The finding that R&D expenditures differently affect future performance, uncertainty, and sustainable growth potential according to the firm life cycle is expected to help managers make decisions about R&D investment.

We investigate whether auditors input additional audit hours according to the sizes of book-tax differences (hereinafter BTD) and request additional audit fees for additional audit hours. In addition, the interaction effects of corporate governance on the relationships between BTD and audit hours/audit fees are examined using the total corporate governance (TCG) scores, data from the Korea Corporate Governance Service (KCGS). We predict that since auditors have the incentive and ability to consider BTD, audit hours and audit fees will increase when BTD are larger. Empirical results of our study are as follows. First, BTD and audit hours (LnAH) show a negative (-) association that is not statistically significant. Second, audit fees (LnAF) were shown to increase along with BTD. This can be interpreted as a result of requests for additional audit fees for increased audit risks due to individual firms' BTD. Third, the interaction effect of corporate governance on the relationship between BTD and audit hours (LnAH) showed a positive (+) association, but the association was not statistically significant. Fourth, the interaction effect of corporate governance on the relationship between BTD and audit fees (LnAF) showed a statistically significant positive (+) association. This be understood as meaning that firms with better governance make more efforts for financial reporting in order to maintain their reliability in the market. This study contributes to the literature in several important aspects. First, it empirically demonstrates whether auditors properly reflect BTD on audit risks. Next, our study is analyzes the effects of corporate governance on the relationship between BTD and audit hours/audit fees using the total corporate governance (TCG) scores presented by the Korea Corporate Governance Service (KCGS). Finally, our findings empirically showed social proof function of accounting audits as a strategy to reduce information risks.

This study empirically examines the relationship between corporate sustainable management (CSM) and dividend policy. Among the various motivations related to dividends, this study examines the relationship between CSM and dividend policy based on the agency and signaling theory. After examining the relationship between CSM and dividend policy, we investigate whether belonging to a large business group (chaebol group) has a significant effect on the relationship between CSM and dividend policy. The analysis period is from 2011 to 2018, and the ESG ratings of the Korea Corporate Governance Service are used as proxies for CSM. The empirical results show that CSM and dividends have a significant relationship in the positive direction. This means that firms with excellent CSM activities have higher dividend levels than those that do not. Furthermore, the association between CSM and dividends is more negative for firms belonging to a chaebol group. This indicates that the positive relationship between CSM and dividends in a firm that belongs to a chaebol group is weakened. This means that the relationship between CSM and dividends in the group belonging to the chaebol group is weakened. It belongs to the group of conglomerates, meaning that the relationship between the amount of dividends and CSM weakened. Our study focuses on CSM as a determinant of dividends, and examines the effects of belonging to a chaebol group in the relationship between CSM and dividends. Given that resolving the interest incompatibility between investors and managers is the focus of corporate governance, dividend policies can be used as a method for resolving the interest incompatibility between investors and managers.

In this study, the effects of key audit matters (KAMs), one of the measures recently introduced to improve accounting transparency in the production-to-order industry in terms of corporate sustainability, are examined. After the introduction of KAMs, auditors should publicly disclose key audit matters that had been internally judged in the past. In cases where these are missing or misunderstood, the range of the auditor’s liability may increase. Thus, from the viewpoint of the auditor, the description of KAMs can be recognized as the disclosure of internal judgments and an increase in the risk of litigation. It is judged that, to this end, auditors will perform their auditing work more conservatively in cases where they should describe KAMs. The results of analysis of companies to which KAMs are applied indicate that auditors carried out audits more conservatively for such companies. As such, the result can be interpreted as indicating that, due to the introduction of KAMs, auditors evaluate their risk highly and carry out audits more conservatively in order to reduce the risk. This study is meaningful in that it empirically analyzes the effects of the introduction of the recently implemented KAMs. In addition, this study provides implications for enterprises that prepare financial statements, supervisory institutions that conduct supervision, auditors, and capital market participants, as it presents the finding that, with the introduction of KAMs, auditors perform their work with more conservative perspectives. In addition, the findings of this study provide a basis for future studies on KAMs.

This study examined the effect of corporate governance on labor investment efficiency, using 5178 firm-year samples from companies listed on the Korean stock market over the period from 2011 to 2019. In addition, the relationship between corporate governance and labor investment efficiency according to whether the company belongs to a chaebol group was examined. Corporate governance was measured using KCGS’s corporate governance ratings. This study tried to verify whether labor investment inefficiency due to information asymmetry is improved by excellent corporate governance. The results show that in the case of the entire sample, the relationship between corporate governance and labor investment efficiency was significant in the positive (+) direction. That is, it is an empirical result indicating that a company with a sound governance structure is making effective labor investment. The samples were divided into overinvestment samples and underinvestment samples, and the relationship between corporate governance and labor investment efficiency was analyzed separately in the two samples. According to the results, the positive relationship between corporate governance and labor investment efficiency was significant only in the case of underinvestment samples. In addition, the positive relationship between corporate governance and labor investment efficiency was more statistically significant in the case of companies belonging to a chaebol group. This study provided implications for authorities, shareholders, and investors, etc., in that it suggests the role of corporate governance as a mechanism to alleviate the agency problem between managers and investors.