Background to the Study
The subject of corporate governance has spurred research interests with respect to principal- agent relationship expropriation in recent times especially with the existence of publicly quoted companies. This is in corroboration with Claessens & Fan (2002) who opined that corporate governance has received much attention in recent years.
Corporate governance reform has emerged as a critical business issue, thrust on the world stage by a number of high profile corporate failures (Strandberg, 2001). The prominent corporate accounting scandals of Enron Corporation, World Com, Tyco, and Parmalat have led to contemporary discussion on the best mechanisms for protecting stakeholder’s interest and ensuring shareholders wealth maximisation. Also, in Nigeria the emphasis on the need for corporate governance reform sprung up with the incidence of fraudulent financial reporting as reported in the case of Cadbury Nigeria Plc. and the recent crisis in the banking industry.
Abor & Biekpe (2005) intricately define corporate governance as the process and structure used to enhance business prosperity and corporate accountability with the ultimate objective of realizing long- term shareholder value, whilst taking into account the interest of other stakeholders. Kyereboah-Coleman (2007) argues that corporate governance is represented by the structures and processes lay down by a corporate entity to minimize the extent of agency problems as a result of separation between ownership and control. Simply put, corporate governance in an organizational context is the totality of the control, monitoring and directing mechanism utilized by strategic management in the best interests of its stakeholders.
Firm performance is a concept that supports the effective and efficient use of financial resources to achieve overall company objectives which include both shareholders wealth maximisation and profit maximisation objectives. It can be measured using long term market performance measures and other performance measures that are non-market-oriented measures or short term measures (Zubaidah et al, 2009). The measure of firm performance employed in this study is from a non-market oriented perspective which is most common and requires the use of accounting ratios which are the profitability and investor ratios.
This study intends to contribute to the few researches on the Nigerian environment as most of the researches on firm performance and corporate governance which resulted in mixed outcomes were conducted in the United States of America, the United Kingdom, Pakistan and Malaysia (Ertugrul & Hegde, 2009; Jong, Gisper, Kabir, & Renneboog, 2002; Javid & Iqbal, 2009; Zubaidah, Nurmala, & Kamaruzaman, 2009). It would also provide credible findings to support deliberations on this topical issue.
1.2 Statement of Research Problem
The problem areas that spurred the interest in researching on this topic are specifically the loss of confidence by the investors on the capital market, the persistent agency problem and the insolvency of large companies as a result of financial improprieties. These issues are discussed more explicitly below.
Kajola (2008) asserts that financial scandals around the world and the recent collapse of major corporate institutions in the USA, South East Asia, Europe and Nigeria have shaken investors’ faith in the capital markets and the efficacy of existing corporate governance practices in promoting transparency and accountability. Good corporate governance is an important step in building market confidence and encouraging more stable, long-term international investment flows (Bocean & Barbu, 2007). The loss of confidence by investors in the capital market is therefore an indicator of poor corporate governance practice in quoted companies (Oyebode, 2009). The shares of the listed companies on the Nigerian stock exchange are gradually declining from a bullish state to a bearish status. Shareholders have lost interest in trading on the stock exchange because of the crash in share prices just as in the Cadbury Nigeria Plc. case when it overstated its earnings and its shares were dealt a heavy blow on the Nigerian Stock Exchange Market.
Also, the existence of the agency problem which arises in a bid to intermediate between the interests of the managers and that of the shareholders typically influences firm performance. It is for this reason that Sanda, Mikailu, & Garba (2005) posits that for example, the managers might take steps to increase the size of the company and, often, their pay, although they may not necessarily raise the company’s profit, the major concern of the shareholder.
The insolvency of large companies as a result of financial improprieties has awakened discuss on the effect of corporate governance on firm performance (Claessens, 2003; MENA-OECD Investment Programme- Working Group 5, n.d). In the same vein, the predominance of sharp practices by management and insider trading for the purpose of defrauding such companies as a result of the need to satisfy some personal interest may also a contributory factor to poor firm performance.
It is therefore believed that examining the relationship between corporate governance mechanisms and firm performance would attempt to address the problems as stated.
1.3 Objectives of Study
The objective of this study in a broad sense is to measure the relationship between firm performance and corporate governance mechanisms. The specific objectives of this study are thus as follows:
1. Ascertain whether there is a negative relationship between board size and firm performance.
2. Ascertain whether or not the combination of the posts of the CEO and Chairman of the board significantly enhances firm performance.
3. Investigate whether there is a positive relationship between ownership concentration and firm performance.
4. Examine whether the independence of the audit committee affects firm performance positively.
1.4 Research Questions
The study provides answers to the following questions:
1. What is the relationship between board size and firm performance?
2. To what extent does the combination of the posts of the CEO and Chairman of the Board affect performance?
3. How does concentration of ownership affect firm performance?
4. What relationship exists between the independence of the audit committee and firm performance?
The hypotheses that provide greater insight into the research work are as follows:
H1: Board size has a negative significant relationship with firm performance
H2: CEO duality does not significantly increase firm performance
H3: Ownership concentration is positively related to firm performance
H4: Audit committee independence has a positive significant relationship with firm performance
1.6 Scope of Study
The focus of this study is to employ panel data methodology to provide evidence on the relationship between firm performance measures and corporate governance in Nigeria. The study observes the most recent financial periods of some of the non-financial companies listed on the Nigerian Stock Exchange. This includes fifty two (52) selected listed non-financial companies.
Information is elicited from Annual Reports and Accounts for a period of 6 years from 2003 to 2008. The list of selected companies is contained in the appendix.
1.7 Significance of Study
The indispensability of this study lies in its ability to fill an identified gap and contribute to existing researches in the subject area.
The previous empirical studies conducted on the Nigerian environment do not cover information elicited from the most recent periods. The studies provide evidence from the period of 1996 to 2006 (Kajola, 2008; Sanda, Mikailu, & Garba, 2005), whereas this study provides evidence from 2003 to 2008.
Most importantly, this study advances on Kajola (2008) which is the most recent study in this area on the Nigerian Stock Exchange known to the researcher. Kajola (2008) undergoes a limitation borne from examining the relationship between only two performance measures – Return on Equity and Profit margin on the corporate governance variables on twenty (20) companies listed on the Stock Exchange. Whereas, this study makes use of a larger sample size of fifty two (52) and examines the relationship between three performance measures (Return on Equity, Return on Assets, and Profit Margin) and four corporate governance variables .
As a result of the selection of sample companies from different industries, an industry dummy variable is created so as to determine whether or not peculiarity exists in the results of companies in same industry. Also, company size and leverage are introduced as control variables in order to determine their relationship with firm performance.
The intended purpose of bridging the discussed gaps would not be achieved without this research lending its solutions and methodologies to resolving the lasting conflict of interest between managers and shareholders which has been tagged as the agency problem.
This study is beneficial to the following categories of people:
Top executives: this includes the CEO, Chairman and members of the board. It would aid them in managing the issues arising from agency relationships. It would also broaden their perspective on the aspects of corporate governance that need to be enhanced that will result in improved firm performance.
Shareholders/ Investors: it would assist existing shareholders and potential investors to make appropriate judgements as regards their investments and performance of the companies in which they are stakeholders.
Regulators: it would assist the regulators in promulgating better corporate governance regulations that will be more encompassing and contribute effectively to enhancing firm performance and resolving agency conflict.
Future Researchers: they will be able to apply this research to carry out further studies in the same area or related area by serving as a theoretical base for the research to be carried out.
1.8 Limitations of Study
The constraints experienced in carrying out this research are
1. Availability of data: the inability to obtain data from a very large sample of the population impairs the generalization of the findings to a certain extent.
2. Time constraint: based on the fact that the researcher has to cope with other academic activities and official assignments, there is insufficient time for project work.
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