基于动态内生性的董事会结构与公司绩效间的跨时期相互作用

在董事会结构与公司绩效间关系的研究中,动态内生性问题通常被忽略。本文以2002-2011年410家上市公司为样本,在动态内生性的框架下,运用动态面板的System GMM估计方法,研究了董事会结构与公司综合绩效间的关系。结果表明：董事会结构与公司绩效间存在动态内生性问题,当期董事会结构与公司绩效没有显著的相关性,前期的董事会结构与公司绩效间存在显著的正相关关系,且前期公司绩效对当期董事会规模产生了显著的正向的反馈效应,但前期公司绩效并未对当期董事会的独立性产生显著影响。     

The effect of independent directors’ characteristics on firm performance: Tenure and multiple directorships

In this paper, we analyze how the tenure and the number of directorships of independent directors may influence the relationship between board independence and firm performance. Our sample is composed of US listed firms for the period 2008–2012. Several robustness checks and sensitivity analyses are performed and we confirm that the board’s independence positively influences the firm’s performance. Nevertheless, this relationship exists only under certain values of directors’ tenure and external directorships. Our findings show that these variables determine the effectiveness of independent directors. Therefore, this paper highlights the need for a more specific approach, based on the personal characteristics of independent directors, in order to study their influence on corporate decisions, strategy and outcomes. Furthermore, our evidence has direct implications for companies in the selection of board members.     

Corporate board and board committee independence,firm performance,and family ownership concentration: An analysis based on Hong Kong firms

This study examines whether the relationship between corporate board and board committee independence and firm performance is moderated by the concentration of family ownership. Based on a sample of Hong Kong firms, we find no significant association between the independence of corporate boards or board committees and firm performance in family firms, whereas board independence is positively associated with firm performance in non-family firms. Additionally, our findings show that the proportion of independent directors on the corporate boards of family firms is lower than that of non-family firms, but we find no significant difference in the representation of independent directors on the key committees of corporate boards between family and non-family firms. Overall, these results suggest that the “one size fits all” approach required by the regulatory authorities for appointing independent directors on corporate boards may not necessarily enhance firm performance, especially for family firms. Thus, the requirement to appoint independent directors to the corporate boards of family firms needs to be reconsidered.     

Does CEO duality constrain board independence? Some evidence from audit pricing

This study examines whether CEO duality affects the association between board independence and demand for higher quality audits, proxied by audit fee. The findings show that there is a positive association between board independence and audit fees. This result is consistent with findings of Carcello et al. (2002) that more independent boards demand higher audit quality and effort. However, this positive association is only present in firms without CEO duality, thus suggesting that CEO duality constrains board independence. The results support recommendations against CEO duality by showing that dominant CEOs may compromise the independence of their board of directors. Additionally, evidence is provided that board size (the number of directors on the board) is positively associated with audit fee pricing. This is consistent with prior studies that indicate that larger board sizes are associated with inefficiency and negative firm performance.     

The costs of a (nearly) fully independent board

A significant and growing percentage of U.S. firms now have boards where the CEO is the only employee director (hereinafter fully independent boards). This paper studies whether and how this practice impacts board effectiveness. I find that fully independent boards are associated with a significant reduction in firm performance. Further tests suggest two channels for this effect. First, full independence deprives the board of spontaneous and regular access to the firm-specific information of other senior executives. Second, full independence eliminates the first-hand exposure of future CEOs to board-level discussions of strategy, which steepens the learning curve for eventually promoted candidates.     

董事会独立性价值的再研究——基于对绩效波动影响的分析

通过对我国上市公司2000～2007年的数据分析发现,独立性程度较高的董事会与较小的(ROA)波动之间存在着显著的正相关关系,与Q的波动之间不存在显著的相关关系,另外,对董事会独立性与绩效波动之间的中间作用机制进行分析发现,拥有较高独立性董事会的公司,在一定程度上是通过减少企业的非经常性收益和经营性操控应计的波动来对企业绩效的波动产生影响.     

Corporate Governance and Firm Performance in Iran

This study uses data from companies listed in the Tehran Stock Exchange (TSE) for the years 2005–2006 to investigate the role of corporate governance indices on firm performance. We use board size, board independence, board leadership and institutional investors on the board as corporate governance indices and EPS, ROA and ROE as firm performance surrogates. Our regression results show that board size is negatively associated with firm performance. Moreover, the presence of outside directors strengthens the firms' performance. We find, however, no relationship between leadership structure and firm performance. Likewise, the presence of institutional investors on the board of directors is not positively associated with firm performance.     

Changes in corporate governance: Externally dictated vs voluntarily determined

Using the 2003 SEC regulations (following the Sarbanes–Oxley Act) on board independence as an identification for externally imposed governance changes, I compare its influence on firm performance to the effect of voluntarily conducted adjustments. I use publicly listed US firms between 1998 and 2009. In a triple-difference (dif-in-dif-in-dif) analysis setting, I explicitly interact the dictated change in board independence with the identifiers of the shock and non-compliant firms. Controlling for companies with voluntary changes, firms forced to modify their governance by increasing board independence experience a decrease in ROA, asset turnover, and sales growth. Testing the joint influence of dictated and voluntary adjustments in board independence on performance through a cross-sectional logistic-regression model, and controlling further for potential endogeneity through an instrumental variable (IV) regression model, I obtain consistent results. The findings are robust for other mandated provisions and stronger for bigger changes; small, single-segment firms operating in wholesale, retail, and high-tech industries; and constrained companies with financial distress, high leverage, low cash, high volatility, high growth and R&D expenses.     

When are outside directors effective?

This paper uses recent regulations that have required some companies to increase the number of outside directors on their boards to generate estimates of the effect of board independence on performance that are largely free from endogeneity problems. Our main finding is that the effectiveness of outside directors depends on the cost of acquiring information about the firm: when the cost of acquiring information is low, performance increases when outsiders are added to the board, and when the cost of information is high, performance worsens when outsiders are added to the board. The estimates provide some of the cleanest estimates to date that board independence matters, and the finding that board effectiveness depends on information cost supports a nascent theoretical literature emphasizing information asymmetry. We also find that firms compose their boards as if they understand that outsider effectiveness varies with information costs.     

Corporate Governance and Mergers and Acquisitions Performance in Banks: Evidence under the Special Regulatory Environment in Taiwan

In this study, we focus on the relation between bank governance and bank merger results under Taiwan’s special regulatory environment in 2000. Adopting governance variables (executive remuneration, managerial ownership, and board diversity), we find that managerial ownership is positively related to bank merger results and that board size is negatively correlated with bank mergers’ performance. This study supports sound governance mechanisms to prevent banks from pursuing a value-loss merger and acquisition (M&A). Our results offer the insight that internal bank governance structures have a bigger impact on the value effects from bank mergers. Thus, regulators may elevate the performance of bank M&As by enhancing corporate governance codes.     

The evolution of boards and CEOs following performance declines

This paper examines the evolution of corporate boards following a large performance decline. Over 40% of the original directors depart the board during the three years following underperformance. Measures of initial CEO influence over the board such as CEO ownership are associated with smaller increases in board independence and less board turnover. The underperforming firms undergo a strong recovery subsequently, with the largest performance improvement occurring among firms that experience no turnover on their boards and among firms that do not change their board independence. We conclude that the large board turnover experienced by underperforming firms presents significant challenges for subsequent recovery.     

Corporate governance and the stock market reaction to new product announcements

This study examines the explanatory power of corporate governance mechanisms on the wealth effect of firms?? new product strategies. We show that board size, board independence, audit committee independence, CEO equity-based pay, analyst following and shareholder rights are all of significance in explaining the variations in the wealth effect of new product introductions. Our results reveal that the new product strategies announced by firms with better corporate governance mechanisms tend to receive higher stock market valuations than those of firms with poorer governance mechanisms. This study provides empirical support for the notion that enhanced governance mechanisms can reduce both agency and information asymmetry problems for firms announcing new products.     

The effects of board characteristics and sustainable compensation policy on carbon performance of UK firms

This study examines the effects of board characteristics and sustainable compensation policy on carbon reduction initiatives and greenhouse gas (GHG) emissions of a firm. We use firm fixed effect model to analyse data from 256 non-financial UK firms covering a period of 13 years (2002–2014). Our estimation results suggest that board independence and board gender diversity have positive associations with carbon reduction initiatives. In addition, environment-social-governance based compensation policy is found to be positively associated with carbon reduction initiatives. However, we do not find any relationship between corporate governance variables and GHG emissions of a firm. Overall, our evidence suggests that corporate boards and executive management tend to focus on a firm's process-oriented carbon performance, without improving actual carbon performance in the form of reduced GHG emissions. The findings have important implications for practitioners and policymakers with respect to the effectiveness of internal corporate governance mechanisms in addressing climate change risks, and possible linkage between corporate governance reform and carbon related policies.     

Board and Monitoring Committee Independence

This study focuses on the composition of boards of directors and their monitoring committees (audit and compensation) for large Australian companies. For firms whose boards use a committee structure, much of the monitoring responsibility of the board is expected to rest with the independent committee members. We document a positive association between the proportion of independent directors on the full board and its monitoring committees, and a greater proportion of independent directors on both audit and compensation committees than the full board. Our hypotheses tests involve an examination of the impact of other mechanisms used to control agency conflicts on full board and committee independence, and the association between this independence and firm value. We find that full board independence is associated with low management ownership and an absence of substantial shareholders. Audit committee independence is associated with reduced monitoring by debtholders when leverage is low. While we predict a positive relationship between board and monitoring committee independence and firm value, our results do not support this conjecture.     

The discretionary effect of CEOs and board chairs on corporate governance structures

In this study we analyze the effect of latent managerial characteristics on corporate governance. We find that CEO and board chair fixed effects explain a significant portion of the variation in board size, board independence, and CEO-chair duality even after controlling for several firm characteristics and firm fixed effects. The effect of CEOs on corporate governance practices is attributable mainly to executives who simultaneously hold the position of CEO and board chair in the same firm. Our results do not show a decline in CEO discretionary influence on corporate governance after the enactment of the Sarbanes–Oxley Act and stock exchange governance regulations.     

Board reforms and the cost of equity: International evidence

We examine the impact of corporate board reforms on the cost of equity (COE) using a sample of data in 41 countries for the period from 1992 to 2012. We find a significant increase in the COE after board reforms worldwide. This effect is eased for firms in countries under a comply-or-explain reform approach, as well as for firms in emerging countries. We further conclude that board reforms involving board independence, audit committee and auditor independence, and the separation of the CEO and Chairman positions, result in increases in the COE. Our results suggest that board reforms are considered inefficient to mitigate agency problems.     

Corporate Governance and Company Performance in Australia

This study tests whether the adoption of Australian best practice corporate governance recommendations is associated with financial performance measured by return on assets (ROA) and Tobin's Q. Results suggest that recommended corporate governance structures relating to the adoption of board sub‐committees are sound policy recommendations that enhance performance using the accounting measure ROA and the market‐based measure Tobin's Q. In contrast, the emphasis on board independence guidelines, specifically having outside independent directors, has a negative impact on ROA and Tobin's Q. However, there are conflicting significant results between the accounting and market measures for having a dual CEO/chairperson and board size.     

银行董事会特征、CEO报酬与银行绩效——基于对11家股份制银行的数据分析

本文通过采集2005～2008年11家已上市的全国股份制商业银行的数据,实证分析了银行董事会独立性与CEO报酬之间的关系,并在考虑银行CEO报酬内生性基础上,进一步检验了银行董事会独立性、CEO报酬和银行绩效的关系。研究结果显示:长任期的CEO、CEO兼任董事长、较大比例的内部董事和较大的董事会规模构成了中国上市银行的监管障碍。银行CEO的高薪酬是不足为奇的,因为高薪酬对应的是银行业绩的显著增长。CEO报酬是银行公司治理的强化机制,授予银行CEO合理的激励报酬可以克服银行监管障碍,提高银行治理水平。     

The relationship between business strategy, management control systems and performance: Evidence from China

Over the past two decades, China has emerged as a global economic power, ranking behind only the USA, Japan and Germany. China's continuous global economic power has therefore prompted a surge in interest in understanding Chinese business practices. This paper reports on the results of a survey on the contingent relationship between business strategy, management control systems (MCS) and performance in Chinese Enterprises. The analysis is based on data gathered from 215 enterprises operating within the Xinjiang autonomous region of China. For those firms that were classified as pursuing differentiation strategy, the use of more non-financial based MCS has a positive effect on performance and this finding is consistent with the literature. We also found that for those firms classified as pursuing a low cost strategy, the use of more financial based MCS had a positive effective on performance as suggested in the literature. Our research has implications for understanding management accounting practices in Chinese enterprises.     

The Importance of Board Quality in the Event of a CEO Death

We examine board quality and executive replacement decisions around deaths of senior executives. Stock price reactions to executive deaths are positively related to board independence. Controlling for such factors as the deceased's stockholdings, outside blockholdings, board size, and whether the deceased was a founder, board independence is the most significant factor explaining abnormal returns. Board independence is particularly important when there is no apparent successor and firm performance is poor. The results are consistent with independent boards being reluctant to discipline poorly performing incumbent managers, but nevertheless using the opportunity of an executive death to improve the quality of management.