基于企業(yè)生命周期的盈余管理及其市場(chǎng)反應(yīng)檢驗(yàn)研究
[Abstract]:Since earnings management has a direct impact on the accuracy of the accounting earnings numbers in the financial reports and has an impact on the efficiency of resource allocation in the capital market, earnings management has been a hot research field in the empirical accounting research since 1980s. A lot of research has been carried out on the issue of earnings management at home and abroad and has already been carried out. A lot of achievements have been achieved, but more about the motivation, means, research methods, enterprise life cycle and corporate financial characteristics or corporate financial characteristics and earnings management, and less direct research on the relationship between the enterprise life cycle and earnings management, especially the life cycle of the enterprise, the accrued earnings management and the real earnings management. Together, the relationship between the enterprise life cycle and the earnings management is systematically studied. The empirical study on whether the investors can identify the prevailing earnings management behavior of the listed companies is still scarce.
The existing research holds that there is a very close relationship between the enterprise life cycle and the financial characteristics of the enterprise. The different life cycle stages of the enterprise correspond to the different financial characteristics, and there is a stable correlation between the financial characteristics of the enterprise and the earnings management, and the ways and means of the earnings management are also different under different financial characteristics. It can be seen that both the enterprise life cycle and the earnings management are closely related to the financial characteristics of the enterprise, and with the different stages of the enterprise life cycle, the ways and means of earnings management will also change. Is there a discrepancy between the degree of management and its direction? This is the first issue in this paper.
This paper selects the relevant data of all listed companies in Shanghai and Shenzhen A shares for 2007-2011 years as the basis for estimating the accrued and real earnings management variables, using the modified Jones model of Dechow and so on (1995), Roychowdhury (2006) and Cohen (2008) to estimate the relative variables of the accrual and real earnings management, and then through the construction. Multiple linear regression model is used to test the difference between the accrual and the real earnings management of listed companies of different life cycle stages. The results show that (1) two different earnings management methods are used to adjust earnings flexibly at the same time. 2) in the case of the same other conditions, the real earnings management of enterprises in different periods is higher than that of their accrued earnings management; (3) the degree of accrued and real earnings management in the growth period and the decline period is higher than that of the mature enterprises; (4) in comparison, the business owners of the growth period and the recession period are compared. The surplus should be adjusted upward by accruals and real earnings management, while the mature firms will mainly adjust earnings by accruals and real earnings management.
The first study confirms that the listed companies in different life cycle stages have different degrees of accrual and real earnings management, and there are differences in direction. Since the founding of China Securities Regulatory Commission in 1992, the degree of legalization of China's capital market has been improved and the effectiveness of capital market has been improved. Will the earnings management behavior of the listed companies affect the effectiveness of the securities market in our country? Will it affect the efficiency of the resource allocation in the securities market? Can the users and other accounting information users identify the common earnings management behavior of the listed companies in different life cycle stages? This is the first study in this paper. The two question.
This paper is based on the related data of all listed companies in Shanghai and Shenzhen A shares for 2007-2011 years, using the accrual and real earnings management indicators that can reflect the earnings management of the listed companies, through the purchase and holding of the abnormal return rate model (buy-and-hold abnormal returns, BHAR model), the calendar abnormal return rate model (calendar-time ABN). Three different market response detection models, such as ormal returns, CTAR model) and the arbitrage portfolio regression model (hedge portfolio regression, HPR model), can identify the earnings of the listed companies in different life cycle stages from the accrued earnings management and the real earnings management of two different earnings management methods. The results show that: (1) investors can not fully identify the earnings management behavior of Listed Companies in China, including accrued earnings management and real earnings management, but in comparison, the ability to identify real earnings management behavior is stronger; (2) the purchase and holding of Listed Companies in China can obtain a certain amount. The excess rate of return; (3) the purchase and holding of the stock of the listed company in the growth period is higher for 12 months and 24 months of excess return compared to the mature period, and the stock of the listed company buying and holding in the mature period will gain a higher level of 6 than the growth period and the recession enterprise. The excess rate of pay for the month.
The conclusion of the above study shows that the listed companies in different life cycle stages can use the accrual and real earnings management methods to adjust the earnings flexibly at the same time, but the investors can not fully identify the two kinds of earnings management management methods of the listed companies, and there are some differences in the ability to identify the two different earnings management methods. So, what are the specific reasons that affect investors' identification of different earnings management modes? This is the third issue of this paper.
This paper takes all listed companies of deep A shares as research samples and selects the relevant data of its 2007-2011 year as the research basis. Through the construction of the corresponding multiple linear regression model and multiple mixed cross section regression analysis method, it can affect the investor to identify the earnings of listed companies from three aspects: information transparency, audit supervision and corporate governance. The results of the management methods are tested, and the results are as follows: (1) the information transparency of the listed companies has a significant inhibitory effect on the negative accrual earnings management, while the influence on the positive accrual earnings management and the real earnings management is not significant; (2) the independent director system of our country has not played a restrictive role to the management of the earnings of the company. Including accrued earnings management and real earnings management; (3) there is no information about the strong interrelationship between the audit opinion type and the earnings management, that is, investors can not identify the earnings management of the listed companies, including the accrual and real earnings management, and (4) the financial statements of the listed companies. According to the four major international audits, there is no relationship between the liquidity strength of the stock and the ownership concentration degree and the earnings management, that is, the investor can not identify whether there is a earnings management through earnings management through the information of the corporate governance.
The conclusions can provide theoretical guidance for investors and other accounting information users, improve the decision-making quality of decision-makers, provide basis for the formulation of accounting standards, accelerate the improvement and development of accounting standards, provide a basis for the formulation of regulatory policies, and improve the pertinence of the supervision policy. At the same time, this paper is rich in research. Earnings management mode, means and earnings management response research results.
【學(xué)位授予單位】:中南大學(xué)
【學(xué)位級(jí)別】:博士
【學(xué)位授予年份】:2014
【分類號(hào)】:F832.51;F275
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