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The association between disclosures on control system over financial reporting and mechanisms of corporate governance: Empirical evidence from Germany and Poland

   | 06 nov 2020
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Cita

Introduction

Control over financial reporting has gained a new dimension after the unpleasant experience of financial scandals in the United States and Europe. It became apparent that the mechanisms of corporate governance functioning have failed at the beginning of the twenty-first century. As a response to financial scandals, new regulations were introduced in both the United States and Europe, under which public companies were required to present additional disclosures in the area of corporate governance. These disclosures include, among others, information on the system of control over financial reporting. This information seems particularly relevant as the control system over financial reporting integrates selected internal and external corporate governance mechanisms around the accounting information system [Gad, 2016]. The system of control over financial reporting is considered as a type of defense against irregularities in financial reporting [Bardhan et al., 2015]. Disclosures about the system of control over financial reporting are important for investors who can use this information to control the activities of management [Hermanson, 2000].

Hooghiemstra et al. [2015] pointed out that the approach adopted in the United States to the control system is extremely narrow and is related primarily with the reliability of financial reporting. A wider approach is presented in the COSO Framework [Committee of Sponsoring Organizations of the Treadway Commission, 1992]. At the same time, the authors noticed that outside the United States the law does not require managers to disclose information regarding control over financial reporting, and in most cases, the guidelines in this respect emerge from national corporate governance codes and are voluntary. Meanwhile, in Poland and Germany, public companies are obliged by virtue of the “hard” law to present these disclosures in their annual reports [Gad, 2016]. The managers of companies may only decide on the scope of these disclosures. Contrast to the United States, the regulations in force in Poland and Germany do not require public companies to present material weaknesses in the system of control over financial reporting.

Research on disclosures about control over financial reporting has great potential. These disclosures are freely shaped by the persons managing the companies; therefore it could be used to eliminate the agency conflict [Fama and Jensen, 1983]. The results of the research would also be important from the point of view of signaling theory [Spence, 1976]. The scope of disclosures can be used to get the impression that the reliability of financial reporting is ensured by means of a professional, comprehensive control system. Disclosures about control over financial reporting reflect a kind of corporate governance architecture and, in particular, the mechanisms responsible for the supervision of financial reporting. As indicated in the literature, the disclosures about control over financial reporting are not only a good area for comparing the enterprises operating in a given country, but also for comparing enterprises operating in different countries [Hooghiemstra et al., 2015].

The aim of the research was to determine the impact of selected corporate governance mechanisms on the scope of disclosures related to control system over financial reporting in Poland and Germany.

The research results confirm that corporate governance mechanisms influence the scope of disclosures regarding control system over financial reporting. It was found that the number of supervisory board committees and the number of meetings of the supervisory board have a significant positive influence on the scope of disclosures regarding control system over financial reporting. But, the increase in number of meetings of the audit committee, i.e., the unit which in particular should be involved in monitoring financial reporting, has a significant negative impact on the scope of disclosures regarding control system over financial reporting. The audit committee should also be involved in monitoring the effectiveness of the system of control over financial reporting. Hence, it seems that the meetings of the audit committee are a substitute for disclosures regarding control system over financial reporting. In Poland and Germany, the research results indicate that various corporate governance mechanisms affect the scope of disclosures regarding control system over financial reporting. In Polish companies the number of meetings of supervisory boards and the concentration of ownership affected the scope of disclosures, while in German companies the scope of disclosures was affected by the number of committees of supervisory boards, the number of meetings of the audit committee, and the share of independent members among the total number in supervisory boards.

Because of the existing concerns about the quality of the control system over financial reporting, it seems that the research results presented in this article are important for both researchers and practitioners, since they provide new knowledge regarding the factors affecting disclosures about control system over financial reporting. They also provide new knowledge about national corporate governance systems. The article presents the original research methodology used to determine the scope of disclosures about the system of control over financial reporting. A catalog of detailed disclosures regarding control over financial reporting has been created and based on the catalog the scope of disclosures of the examined entities was estimated.

The first part of the article deals with the characteristics of the corporate governance systems in Poland and Germany. The second part presents literature studies on the impact of various factors on the scope of disclosures about the system of control over financial reporting. Part three provides information on the organization of the research. The fourth part analyses the results of regression analysis. The fifth part of the article presents the conclusions and research limitations.

Background of the study

Corporate governance solutions in Poland and Germany are similar in nature. A two-tier corporate governance model is mandatory in both countries. In both Germany and Poland the responsibility for monitoring management activities rests primarily with the supervisory board, with shareholders playing a relatively minor role in the supervision process [Hopt, 2015; Jeżak, 2014]. In recent years, the level of ownership concentration has decreased on the Polish capital market, but it is still at a relatively high level [Adamska, 2013; Urbanek, 2009]. In the case of companies from the DAX index and other large corporations listed in Germany, the concentration of ownership has decreased significantly in recent years, and now there are companies with dispersed shareholding. While the share of international investors in ownership has increased, at the same time there are fewer domestic banks in the structure of large corporations, i.e., these banks cease to play a key role in the ownership structure of large corporations [Hopt, 2015]. The management board is elected by the supervisory board in both Poland and Germany, while the supervisory board is elected by the shareholders. The “comply or explain” principle introduced for the first time in 2002 in Poland and Germany is applied in the area of “soft” corporate governance law. Until the 1990s, enacted legal acts in Europe were mainly derived from German law. But, in the last two decades, due to the development of international capital markets and the globalization process, Anglo-Saxon standards have gained importance [Opalski, 2010]. The concept of control systems over financial reporting appeared due to the financial scandals that took place at the beginning of the 21st century in the United States. One of the key provisions of the Sarbanes-Oxley Act (SOX), which was a direct reaction to these financial scandals, was the mandatory requirement of enterprises to publish information on control over their accounting system [Clarke, 2004]. In Europe, guidelines on publishing information on control over financial reporting are included in Directive 2006/46/EC of the European Parliament and of the Council of June 14, 2006. Pursuant to paragraph 10 of Directive 2006/46/EC, companies whose securities are allowed to participate in trading on a regulated market and whose registered office is located within the European Community are required to produce an annual statement on the application of corporate governance principles, constituting a separate and easily identifiable part of the management report. This statement should provide shareholders information on the actual corporate governance practices in the company, including a description of the main features of any existing risk management and internal control systems associated to the financial reporting process. The guidelines of the above directive were implemented by national regulations in Poland (the Regulation of the Minister of Finance dated 19 February 2009 on current and periodic information in reports on the activities of all issuers of securities) and Germany (the German Commercial Code). Both Polish and German regulations indicate that disclosures about the system of control over financial reporting must form part of the management report. It should be emphasized that neither Polish nor German regulations contain any guidelines related to the scope of disclosures about control systems over financial reporting, whereas companies listed in the United States are required by the Sarbanes-Oxley Act to disclose any material weakness of the control system over financial reporting.

The qualitative research conducted so far indicates that the disclosures about control over financial reporting presented by companies listed on the Polish and German capital markets are in the 11 main information areas, i.e.: main principles of control systems over financial reporting, IT tools, internal and external regulations, external audit, internal audit, organization of the accounting system, data security and protection, the process of preparing financial statements, supervisory board (audit committee), management accounting, and risk [Gad, 2016].

Literature review and hypotheses development

The signaling theory [Spence, 1976] and the agency theory [Fama and Jensen, 1983] are the basic theories used for the analysis of disclosures regarding the system of control over financial reporting. The scope of disclosures may be used by managers to signal that the reliability of financial reporting is ensured by means of a comprehensive control system. Disclosures about control over financial reporting mitigate the problem of information asymmetry between the principal and the agent. The agent (manager) has full information about the system of control over financial reporting, whereas the principal (owner) has only information on control over financial reporting as presented in the company's annual report.

The literature indicates that a higher quality of corporate governance is directly related to the effective system of control over financial reporting [Hoitash et al., 2009]. The system of control over financial reporting prevents the manipulation of results by managers, acts toward the benefit of shareholders, and thus mitigates the problem of agency.

The effectiveness of corporate governance depends largely on the activity of supervisory boards (boards of directors) [Hoitash et al., 2009] and task groups operating within them, i.e., committees.

Based on a survey conducted among 46 banks listed on the London Stock Exchange in 2011, it was established that the level of disclosures about corporate governance is positively correlated with the existence of committees within the board of directors [Stefanescu, 2012]. Particularly, it is observed that the activities of the audit committee have a positive impact on the quality of financial reporting [Bedard et al., 2004]. The presence of this committee also affects the level of voluntary disclosures and it has been confirmed by studies carried out among companies listed in the United States [Krishnan, 2005].

The establishment of the board committees strengthens the control function of corporate governance [Stefanescu, 2012]. It is expected that better supervised companies will have a better system of control over financial reporting, and these companies will be disclosing more information as part of disclosures about the control system [Bronson et al., 2006].

As part of the study, it is expected that:

H1: The number of supervisory board committees is positively correlated with the scope of disclosures about the system of control over financial reporting.

Karamanou and Vafaes [2005] showed in research conducted among public companies listed in the United States that effective corporate governance is positively related to the scope of financial disclosures. Moreover, Lang and Lundholm [1993] confirmed the positive impact of effective corporate governance on the scope of corporate disclosures (both financial and non-financial) presented by enterprises [Lang and Lundholm, 1993].

The frequency of meetings of the board of directors can be considered as the time they spend on monitoring management activities [Vefeas, 1999], and thus increasing the effectiveness of corporate governance. The results of research conducted among companies listed in the United States indicate that in the case of more active boards of directors, the managers of companies present more precise forecasts in their reports [Karamanou and Vafaes, 2005].

As part of the study it is expected that:

H2: The number of meetings of supervisory boards is positively correlated with the scope of disclosures about the system of control over financial reporting.

The literature indicates that, from the point of view of the agency theory, the audit committee serves as a means of contributing to reducing the information asymmetry, reducing the manager opportunism, and increasing the improvement of the quality of disclosures [Cheung et al., 2010]. It is expected that audit committees which meet more often exercise effective control over the quality of financial information to a larger extent [Menon and Williams, 1994]. The literature shows a positive correlation between the frequency of meetings of the audit committee and the scope of disclosures on corporate community involvement presented by British companies [Yekini et al., 2015].

When analyzing companies listed in the United States in 1998, it was found that the number of meetings of audit committees was positively correlated with the occurrence of voluntary disclosures regarding control over financial reporting. The disclosures were examined using the dichotomous variable and concerned the period when disclosures about control over financial reporting were not mandatory in the United States [Bronson et al., 2006]. The situation seems to be more complex for the case of disclosures where the the system of control over financial reporting must be presented along with the annual report and whose scope is arbitrary. The literature indicates that for the companies listed in the United States (drawing up disclosures according to the SOX Act) frequent meetings of the audit committee may be a reaction to identified problems related to control over financial reporting and may not always result from increased involvement resulting in better control [Hoitash et al., 2009]. The literature also indicates that the audit committee assesses the effectiveness of the control system and plays a key role in it. The involvement of the audit committee in the functioning of the control system over financial reporting may encourage the management board to reduce disclosures in this area, because the risk of possible irregularities is reduced [Hoitash et al., 2009].

As part of the study, it is expected that:

H3: The number of meetings of audit committees is negatively correlated with the scope of disclosures about the system of control over financial reporting.

Fama and Jensen [1983] pointed out that the greater share of independent directors in the board of directors will raise the effectiveness of the process of monitoring the board and limiting the opportunism of managers.

The numerous studies conducted so far in Europe, the United States, and Australia regarding the relationship between the independence of the board and the scope of the disclosures do not provide unambiguous results. The results of research on disclosures regarding control over financial reporting carried out among 160 companies listed on European stock exchanges in the years 2003–2005 indicate that this relationship is negative. The authors explain that a high proportion of independent board members increases the board's ability to control the actions of managers and increases the effectiveness of monitoring their activities. At the same time, a strong board means that managers are less prone to voluntary disclosures. It should be emphasized that the research was conducted among companies listed on the capital markets of European countries with a different supervision model (one-tier/two-tier) [Michelon et al., 2009]. More importantly, it is observed that the share of independent directors in the board of directors is negatively related to the scope of disclosures about the control over financial reporting (measured by the matrix of disclosures created by its authors) when the ownership is dispersed. At the same time, this dependence is positive when ownership is dominated by a largest shareholder [Michelon et al., 2009].

Research conducted among 181 companies in Australia indicates that the higher the share of independent directors in the board, the more voluntary disclosures about the strategy are presented, as well as more quantitative forecasting information [Lim et al., 2007]. What is more, the survey conducted among 350 companies listed in the United Kingdom allows us to conclude that the share of independent directors in the board of directors is positively linked to the scope of corporate community involvement [Yekini et al., 2015].

The results of research conducted among 87 companies (data from the years 1993–94) listed in Hong Kong confirm the existence of a positive relationship between the share of independent directors on the board of directors and the scope of mandatory financial disclosures [Chen and Jaggi, 2000]. Research conducted among banks listed on the London Stock Exchange indicated that the share of independent members in the committees of the board of directors is positively correlated with the level of disclosures about corporate governance (measured by the index of disclosures constructed by its author) [Stefanescu, 2012].

A study conducted among companies listed in the 1990s in the Netherlands found that voluntary disclosures about internal control and risk management systems (measured by the index of disclosures created by its authors) are positively related to the share of independent directors in the board of directors [Deumes and Knechel, 2008].

Further, the literature indicates that the existing positive relationship between the independence of the board and the scope of disclosures may be related to the fact that shareholders appointing independent board members consider that the company should have a transparent financial data reporting system. It is also highlighted that independent board members agree to sit on the board when they receive assurance regarding transparent financial reporting [Armstrong et al., 2016]. Shareholders are aware of the difficulties involved in monitoring the financial reporting process and therefore grant greater remuneration to members of the audit committee in a situation when the expectations regarding this monitoring are greater [Engel et al., 2003].

As part of the study, it is expected that:

H4: The share of independent members of supervisory boards in their total number is positively correlated with the scope of disclosures regarding the system of control over financial reporting.

The results of research on the relationship between the scope of disclosures and the concentration of ownership are not conclusive. This may be due to the method of measuring the concentration of ownership and the type of disclosures, as well as the method of measuring them.

Based on the research on disclosures regarding control over financial reporting (measured by the disclosure index created by its authors) of companies listed on European stock exchanges during the years 2003–2005, it was determined that they are negatively related to the concentration of ownership [Michelon et al., 2009]. Moreover, it was found based on the research carried out among 397 companies listed in the United States that in companies having concentrated shareholding, the level of disclosure on corporate governance was smaller [Bauwhede and Willekens, 2008]. Similar results were obtained by Hadro et al. [2017], who examined the scope of disclosures included in the letters to the shareholders of the 60 largest companies listed on the Polish capital market.

The research results presented in the literature also indicate a different relationship. Majority shareholders who play an important role in corporate governance are more motivated to monitor the activities of managers because of their large investment [Shleifer and Vishny, 1986, 1997]. By monitoring the activities of managers, pressure is exerted on them, which means that they are encouraged to reveal the quality of financial reporting and of the entire accounting system by disclosing voluntary information on control over financial reporting [Bronson et al., 2006].

As part of the study, it is expected that:

H5: The concentration of ownership is positively correlated with the scope of disclosures about the system of control over financial reporting.

Organization of the study
Research group

The research group comprised of companies from the Warsaw WIG 30 index and the German DAX index in 2013, which included the largest public companies listed on the Warsaw Stock Exchange and on the Frankfurt Stock Exchange. It was assumed that companies belonging to the WIG 30 and DAX indexes constitute a kind of “litmus test” for both stock exchanges, in the area of reporting practice and corporate governance standards apart from other areas. The number of companies included from both indexes is 30, which facilitates the comparability of results. One company belonging to the WIG 30 index was excluded from the survey as it did not disclose information on the system of control over financial reporting in 2013. The data were obtained from both the consolidated annual reports presented in 2013 and websites, and were manually collected.

Model specification and measurement of variables

Measuring the scope of non-financial disclosures is one of the key problems that researchers encounter when constructing research tools. Various measures of the scope of disclosures can be found in the literature, such as words, sentences, pages [Gray et al., 1995; Schroeder and Gibson, 1990; Marston and Shrives, 1991]. Disclosure indexes are also used to measure non-financial disclosures. Bauwhede and Willekens [2008] measured corporate governance disclosures using the Deminor Rating of disclosure on corporate governance. The Internal Control Disclosure Index was used in the research on the scope of disclosures in the area of control over financial reporting conducted by Deumes and Knechel [2008]. Michelon et al. [2009] used the elaborated Total Internal Control System Disclosure Score to measure disclosures on control over financial reporting. It should be noted that the above mentioned disclosure indexes cover differentiated corporate governance issues which are not always directly related to the control system over financial reporting. Importantly, these indexes are tailored to the corporate governance model operating in a given country to some extent.

In our present study, the disclosures are measured by the number of detailed disclosures about control over financial reporting presented by the surveyed companies. A detailed list of the above disclosures was developed as part of qualitative research conducted among the companies of the WIG 30 and DAX index. The data was obtained from the annual reports of the surveyed companies. First, the areas of disclosures regarding the control system over financial reporting were identified in the reports of the examined companies and then a detailed analysis of these disclosures was made. Nearly 152 detailed disclosures regarding control over financial reporting have been identified (cf. Appendix).

The explanatory variable reflects the total number of detailed disclosures regarding the control system over financial reporting presented by a given company (cf. Appendix).

During the research process, five explanatory variables and one control variable regarding the value of assets were identified (cf. Table 1). The article assumes, similarly to the research conducted in the United States by Bronson et al. [2006], that there is a positive relationship between the scope of disclosures about the system of control over financial reporting and the size of the company measured by the value of assets.

Definitions of variables

VariableMeaningMeasure
Dependent variable
SDScope of disclosuresNumber of detailed disclosures regarding the system of control over financial reporting presented in the annual report
Independent variables
CSBSupervisory board committeesNumber of supervisory board committees
MSBMeetings of the supervisory boardNumber of meetings of the supervisory board in a year
MCMeetings of the audit committeeNumber of meetings of the audit committee in a year
IMSBIndependent members of the supervisory boardIn the case of companies listed in Poland, this variable was measured by the share of independent members of the supervisory board in the total of all members. In the case of companies listed in Germany, this variable was measured by the share of independent members of the supervisory board in the total number of supervisory board members who are shareholders’ representatives. When measuring the variable, employees’ representatives on the supervisory board were not taken into account. In most companies they make up half of the board's composition, and the surveyed companies indicated that these members always have the status of independent members.
LBSThe largest block of sharesThe size of the largest block of shares
Control variables
AAssetsValue of the total assets in thousand euro

Source: Author's own compilation.

Results
Descriptive statistics

The research results indicate that, on average, companies presented about 14 detailed disclosures regarding control over financial reporting. The median number of supervisory board committees is three. Importantly, there are companies in which there are eight supervisory board committees. Members of the supervisory board meet more often than members of audit committees. The maximum number of meetings of supervisory boards was 22, while of the audit committee 11. The share of independent members in the total number of members of the supervisory board was on average 0.51. The average value of assets in the surveyed companies was 87,213,343.39 thousand euro (cf. Table 2).

Descriptive statistics

Statistics
SDCSBMSBMCIMSBLBSA
Companies from the WIG 30 and DAX indexN59595650595959
Mean14.053.497.415.62.51.3187,213,243.39
Median14.003.006.005.00.50.2916,778,500.00
Standard deviation5.681.783.602.28.28.21238,287,779.20
Minimum3040.00.00269,996.00
Maximum25822111.00.751,611,400,000.00
Companies from the WIG 30 indexN29292620292929
Mean12.212.319.156.35.36.449,560,322.77
Median12.003.008.006.00.36.444,894,776.00
Standard deviation6.071.204.502.323.21.1812,093,603.20
Minimum3042.00.13269,996.00
Maximum25422111.00.7548,039,909.00
Companies from the DAX indexN30303030303030
Mean15.834.635.905.13.65.18162,277,733.30
Median14.004.005.005.00.61.1035,391,000.00
Standard deviation4.711.501.562.14.28.16318,687,882.50
Minimum8240.00.005,798,000.00
Maximum25810111.00.591,611,400,000.00

SD, Scope of disclosures; CSB, Number of supervisory board committees; MSB, Number of meetings of the supervisory board; MC, Number of meetings of the audit committee; IMSB, Independent members of the supervisory board; LBS, the largest block of shares; A, Assets.

Source: Author's own compilation.

Normally, the companies listed in Poland presented more than 12 detailed disclosures in the system of control over financial reporting. The minimum number of detailed disclosures was 3, while the maximum number was 25. The median number of committees of the supervisory board was found to be 3. The most important point is that there were companies without any supervisory board committees among the companies listed in Poland. The average share of independent members of the supervisory board among the entire board was 0.36. For Polish listed companies, the average size of the largest block of shares was 0.44. The average Asset value was at 9,560,322.77 thousand euro (cf. Table 2.).

Companies listed in Germany presented almost 16 detailed disclosures on average associated to control over financial reporting. The median number of committees of supervisory boards was 4. The median number of meetings of supervisory boards was 5. The average of the share of independent members of the supervisory board among the total number of members representing shareholders was 0.65. It should be noted that in Germany that the supervisory board consists of employee representatives in addition to representatives of shareholders. The average share of the largest shareholder was found to be 0.18. Moreover, the average value of assets was estimated as 162,277,733.30 thousand euro when all the companies listed in Germany were considered (cf. Table 2).

The existing key differences are identified between companies belonging to both the WIG 30 and DAX indexes. Generally, the companies in the DAX index presented more detailed disclosures related to the control system over financial reporting than the companies in the WIG 30 index. Further, more committees of supervisory boards were appointed in companies listed in the DAX index rather than companies in the WIG 30 index. The average share of independent members in the supervisory board was higher in companies of the DAX index when compared to companies of the WIG 30 index. On the other hand, the concentration of ownership was definitely lower in companies listed in the DAX index than the companies of the WIG 30 index.

The scope of disclosures variable (SD) was significantly (at p < 0.01), positively related to the number of supervisory board committees (CSB).

Correlation analysis indicates that the number of supervisory board committees (CSB) was also significantly (at p < 0.01), positively correlated with the share of independent members of the supervisory board in the total number of members (IMSB). At the same time, the number of supervisory board committees was correlated negatively in a significant manner (at p < 0.01)to ownership concentration (LBS). The higher the concentration of ownership the smaller the number of committees of the supervisory board (cf. Table 3). The correlation analysis includes variables which were used in the regression model.

Correlations between variables (Pearson's coefficient)—companies from the WIG 30 and DAX indexes

SDCSBMSBMCIMSBLBSA
SD1.000
CSB.496**1.000
MSB.203−.1151.000
MC−.145.135.328*1.000
IMSB.248.399**−.297*.0311.000
LBS−.119−.509**.262−.023−.516**1.00
A.115.362**−.052.340*.233−.319*1.000

p < 0.05;

p < 0.01

SD, Scope of disclosures; CSB, Number of supervisory board committees; MSB, Meetings of the supervisory board; MC, Number of meetings of the audit committee; IMSB, Independent members of the supervisory board; LBS, the largest block of shares; A, Assets.

Source: Author's own compilation.

Regression results

A linear regression model was built in our work to indicate the importance of the impact of individual corporate governance mechanisms on the scope of disclosures related to the control system over financial reporting.

The best model which was constructed based on the companies from both indexes explains the scope of disclosures in approx. 23%. On the basis of the data set obtained, no better explanation could be found, and the proposed one confirms most of the results of previous research. The dependent variable has the features of normal distribution (statistics; 967, df 59, p > 0.05 in the Shapiro-Wilk test). The residuals have a normal distribution (statistics; 983, df 50, p > 0.05 in the Shapiro-Wilk test). The modeling results indicate that the following explanatory variables are significant: Supervisory board committees (CSB at significance level p < 0.01), Supervisory board meetings (MSB at significance level p < 0.01), and Audit committee meetings (MC at level p < 0.05). The number of meetings of the supervisory board affects the scope of disclosures to the greatest extent. None of the model parameters introduces the collinearity into the model (cf. Table 4).

Regression analysis (Model 1). Dependent variable: Scope of disclosures

Type of modelExpected directionModel 1. Companies from the WIG 30 and DAX index
123
N59
Beta coefficients
CSB+.457**
MSB+.452**
MC−.371*
IMBS+.218
LBS+.147
A+.037
ModelsValues
Adj. R20.230
F3.440**

p < 0.1;

p < 0.05;

p < 001

Predictors: (Constant); CSB, Number of supervisory board committees; MSB, Number of meetings of the supervisory board; MC, Number of meetings of the audit committee; IMSB, Independent members of the supervisory board; LBS, the largest block of shares; A, Assets.

Source: Author's own compilation.

The research results confirm hypothesis No. 1 (p < 0.01), i.e., with the increase in the number of supervisory board committees (CSB), the scope of disclosures about the control system over financial reporting (SD) increases. This is confirmed by the conclusions presented in the literature that better controlled companies will have a better control system, and these companies will reveal more information about this system [Bronson et al., 2006]. The obtained research results complement other studies which showed a positive impact of the supervisory board committees on disclosures in the area of corporate governance [Stefanescu, 2012]. Moreover, the literature draws attention of the influence of one of the committees, i.e., the effect of audit committee on the scope of financial disclosures [Bedard et al., 2004] and voluntary non-financial disclosures [Krishnan, 2005]. The study proved that other committees also have a positive influence on the scope of disclosures regarding control over financial reporting.

The obtained results of the research confirmed hypothesis No. 2 (p < 0.01). This means, when the number of meetings of supervisory boards (MSB) is greater, then the scope of disclosures about the control system over financial reporting (SD) will be higher. The research results supplement the current knowledge on the impact of the activity (manifested by the number of meetings) of supervisory boards on the scope of non-financial disclosures regarding the system of control over financial reporting. According to the literature, the influence of active board on the precision of forecasts presented in the companies’ reports and on the scope of financial disclosures can be determined [Karamanou and Vafaes, 2005].

The results of the research confirmed hypothesis No. 3 (p < 0.05), according to which the number of meetings of audit committees (MC) is negatively related to the scope of disclosures about the control system over financial reporting (SD). The research results indicate that the more active the audit committees, the smaller the scope of disclosures about the control system over financial reporting. These results differ from the results of surveys conducted on the companies listed in the United States in the year 1998 [Bronson et al., 2006]. At the same time, the obtained results are consistent with the opinions presented in the literature that the involvement of the audit committee in the functioning of the control system over financial reporting encourages management to reduce disclosures in this area [Hoitash et al., 2009]. The conducted study complements the research results presented so far and it indicates that an active audit committee is a substitute for the system of control over financial reporting in today's corporate governance.

Hypothesis No. 4, that there is a relationship between the share of independent members of supervisory boards in the total number of board members (IMSB) and the scope of disclosures about the system of control over financial reporting (SD) has not been confirmed. The impact of IMSB on the variable SD is statistically insignificant in the constructed model.

Hypothesis No. 5, according to which the concentration of ownership (LBS) is correlated with the scope of disclosures about the system of control over financial reporting (SD) is not confirmed. When analyzed the companies included in the survey, it was found that the concentration of ownership did not affect the scope of disclosures (it was statistically insignificant). It should be noted that there is no unambiguity as to the direction of the impact of this variable on the scope of disclosures according to the literature [Bronson et al., 2006; Bauwhede and Willekens, 2008].

The estimated descriptive statistics indicate a number of differences between the corporate governance practice in Poland and Germany. Therefore, it was decided to construct two consecutive linear regression models taking into account data for only one of the stock exchanges (estimates were made in groups). These models explain to a greater extent the impact of selected variables on the scope of disclosures about the system of control over financial reporting. The first model uses data on companies listed in Poland, while the second uses data on companies listed in Germany.

The best of the prepared models explains the changes in the scope of disclosures presented by companies listed in Poland in approx. 27%. The dependent variable has a normal distribution (statistics; 963, df 29, p > 0.05 in the Shapiro-Wilk test). Moreover, the residuals of the model have a normal distribution (statistics; 981, df 26, p > 0.05 in the Shapiro-Wilk test). The modeling results indicate that the following independent variables are significant: Supervisory board committees (CSB at p < 0.05) and Supervisory board meetings (MSB at p < 0.05) (cf. Table 5). None of the model parameters introduces collinearity into the model.

Regression analysis (Model 2 and 3). Dependent variable: Scope of disclosures

Type of modelExpected directionModel 2. Companies from the WIG 30 indexModel 3. Companies from the DAX index
1234
N2930
Beta coefficientsBeta coefficients
CSB+.384*.530**
MSB+.363*
MC−.515*
IMBS+.381*
LBS+.310
A+−.137.144
ModelsValuesValues
Adj. R20.2710.253
F3.328*3.460*

p < 0.1;

p < 0.05;

p < 0.01

Predictors: (Constant); CSB, Number of supervisory board committees; MSB, Number of meetings of the supervisory board; MC, Number of meetings of the audit committee; IMSB, Independent members of the supervisory board; LBS, the largest block of shares; A, Assets.

Source: Author's own compilation.

The model for companies listed in Germany explains changes in the scope of disclosures presented by companies in approx. 25%. The dependent variable has no normal distribution characteristics (statistics; 901, df 30, p < 0.05 in the Shapiro-Wilk test). The model residuals have a normal distribution (statistics; 972, df 30, p > 0.05 in the Shapiro-Wilk test). Modeling results indicate that the following independent variables are significant: Supervisory board committees (CSB at p < 0.01), Audit committee meetings (MC at p < 0.05) and Independent supervisory board members (IMSB at p < 0.05) (cf. Table 5). None of the model parameters introduces collinearity into the model.

When the models estimated separately for companies listed in Poland and Germany are compared, it indicated different variables affect the scope of disclosures about the system of control over financial reporting (SD) in these two groups of companies. The strength of the influence of individual variables is also different. For both constructed models for particular groups of companies, the number of supervisory board committees (CSB) affected the scope of disclosures related to the system of control over financial reporting (SD). In the case of German companies this influence was definitely stronger. Analysis of descriptive statistics indicates that committees of supervisory boards are more often appointed in German companies than in Polish companies. In German companies the maximum number of committees was 8, while in Poland only 4.

The supervisory board meetings variable (MSB) significantly (p < 0.05) and positively affected the scope of disclosures (SD) of companies listed in Poland. But, in the case of companies listed in Germany, this variable was excluded from the model because it was irrelevant and caused a significant deterioration of the model. Descriptive statistics indicate that in companies listed in Germany, supervisory boards met much less frequently than the companies listed in Poland.

The audit committee meetings variable (MC) had a significant (p < 0.05) and negative impact on the scope of disclosures (SD) presented by companies listed in Germany. But for the companies listed in Poland, this variable was excluded from the model because it was irrelevant and caused a significant deterioration of the model. This may be due to a small number of observations—only 20 companies from the WIG 30 index disclosed information on the frequency of meetings of the audit committee for the year 2013.

The independent members of the supervisory board variable (IMBS) significantly (p < 0.05) and positively affected the scope of disclosures (SD) presented by companies listed in Germany. But for the companies listed in Poland, this variable was excluded from the model because it was irrelevant and caused a significant deterioration of the model. It should be noted that in the case of German companies the share of independent members among the total number of members was definitely higher than in companies listed in Poland.

The largest block of shares variable (LBS) significantly (p < 0.1) and positively affected the scope of disclosures regarding control over financial reporting (SD) presented by companies listed in Poland. For the companies listed in Germany, this variable was excluded from the model because it was irrelevant and caused a significant deterioration of the model.

Conclusions

The content presented in the article complements research results presented in the literature. The study was a comparative one in nature and was conducted among companies from developed and developing capital markets. As part of the study, the number of detailed disclosures regarding the system of control over financial reporting was used as a dependent variable.

The research results indicate that selected corporate governance mechanisms affect the scope of disclosures regarding the system of control over financial reporting. It was established that the quality of corporate governance, manifested in the number of supervisory committees and the number of meetings of the supervisory board influenced the scope of disclosures positively.

The study found that meetings of the audit committee are negatively correlated with the scope of disclosures about the control system. This may be due to the specifics of these disclosures. Further, the issues may be of particular interest to audit committees. This committee is tasked, inter alia, with assessing the effectiveness of this system. The research results indicate that an active audit committee can be treated as an alternative monitoring mechanism to the scope of disclosures on the system of control over financial reporting.

The results of the research also indicate the role of national determinants of the scope of disclosures. When German and Polish companies are considered, the number of supervisory board committees had a significant impact on the scope of disclosures, although the impact varied. It seems, therefore, that the institution of the supervisory board committees transferred from the Anglo-Saxon system to continental Europe plays an important role in corporate governance.

The number of meetings of supervisory boards and the concentration of ownership had a positive impact on the scope of disclosures in Polish companies. It should be noted that in the case of Polish companies, unlike in German companies, the concentration of ownership was high.

When German companies are considered, the scope of disclosures was affected by variables indicating high-quality corporate governance, i.e., the number of supervisory committees, the number of meetings of audit committees, and the share of independent members among the total number of supervisory board members. It was also shown that the number of meetings of audit committees adversely affects the scope of disclosures.

The nature of disclosures about the system of control over financial reporting provides them a good tool for examining the level of transparency of companies. The scope of disclosures depends on the managers, who may treat these disclosures as inside information. Because of these high disclosures, the management board of the companies’ signals to capital market participants that the reliability of financial statements is highly ensured.

One of the basic limitations of the research is the relatively small number of companies that were analyzed. Another limitation is related to the fact that the survey was conducted among companies representing a similar model of corporate governance, which may make it difficult to translate the research results to, e.g., Anglo-Saxon countries.