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The purpose of this paper is to assess the practice of income smoothing in the Gulf Cooperation Council (GCC) emerging markets; Saudi Arabia, Kuwait, United Arab Emirates, Oman and Qatar. Then, to examine the impact of income smoothing on the earnings quality to decide whether income smoothing can serve as either a tool to enhance earnings quality or a tool for opportunistic behavior. Audit quality and corporate governance as additional factors are considered in this study.

The study methodology measures income smoothing behavior based on the coefficient of variation method. Earnings quality is measured as an outcome of the explained variations in stock returns by earnings based on the efficient market hypothesis. Audit quality is measured based on brand as higher quality assigned to auditor from any of the Big 4, while the corporate governance is addressed based on the extent of governmental ownership. The initial study sample comprises 55 companies over a ten year period, from 1999 to 2008; the final sample represents approximately 64 percent of the industrial sector that have public data during the study.

The results suggest that income smoothing behavior in the GCC markets has many variations in practice. Income smoothing, on average, improves earnings quality in three countries out of four, but not significantly for the whole sample based on earnings level. The earnings changes model demonstrated a positive and significant impact of income smoothing on earnings quality. Audit quality and earnings quality have a positive relationship within the region, and companies dominated by the government perform well in accordance with the earnings-return model.

The study is limited to the industrial sector of the GCC.

The study opens the door to future applications to other sectors within the GCC, same sectors and other sectors for Middle East countries and other emerging markets.

The study may foster a better understanding of accounting practices in the GCC and Middle East. The study reveals variations in different aspects among GCC countries, this matter should be considered in separate studies across different areas.

The study makes an original contribution to being the first to explore this topic in the GCC. Additionally, this study shows that the GCC markets have different characteristics in the practice and impact of income smoothing on earnings’ quality. Further, audit quality and corporate governance was investigated for each country and for the region, in addition to the interaction between these factors with the income smoothing and earnings quality.

The paper seeks to examine income smoothing practices in Islamic banks. It first focuses on detecting income smoothing practices. It then seeks to test whether loan loss provisions (LLPs) are used for earnings management purposes.

The paper explores income smoothing practices on a sample of 66 Islamic banks over the period 2001‐2006 using Beidleman's and Eckel's coefficients. Data are obtained from the Bankscope database. To test the use of LLPs to smooth Islamic banks results, a regression model was developed and tested.

The results provide evidence on an extensive use of income smoothing by Islamic banks. More than 75 per cent of the examined banks have a determination coefficient between 0.5 and 1 and 44 per cent have a variation coefficient less than 0.5. However, income smoothing is not achieved through LLPs. The variable earnings before taxes and provisions are not significant in all model specifications. The paper advances that these smoothed incomes are derived rather by the use of profit equalization reserve (PER) and investment risk reserve (IRR). The finding is contradictory to the widespread view stating that those mechanisms are designed to stabilize rewards attributed to investment account holders.

The non‐disclosure of detailed information on PER and IRR prevented the empirical testing of the assertion on the use of these discretionary items to smooth Islamic banks' incomes.

Unlike previous studies which implicitly assume that Islamic banks intentionally use accounting techniques to disclose smoothed results, this paper pioneers the study on detecting income smoothing practice by such institutions. Second, it explores the use of LLPs for earnings management purposes in the context of a fast growing industry where Islamic assets have grown on average by 30 per cent per year over the period 2002‐2007. Third, it is the first paper to give some evidence on the use of PER and IRR as income smoothing devices. Finally, the paper covers a larger number of Islamic banks and from various countries.

The purpose of this paper is to examine empirically the nature of smoothing returns practices in a sample of 79 Islamic banks across 19 countries during the period 2001‐2006.

Previous researchers' methods, based on the variation and determination coefficients, are used in this study to detect the smoothing practices.

Results indicate that the revenues from the “Shariah‐based products” derived from the profit and loss sharing principle show higher variability than the “Shariah compliant revenues” and that income from this source is relatively lower. They also show that a large number of Islamic banks engage in natural income smoothing. Based on the determination coefficient results, 70 per cent of banks were found to have less smoothed total revenue than their net income. Results based on variation coefficient further confirm this finding, with 67 banks having a coefficient of total revenue higher than that of the net income.

The results suggest that Islamic banks should strengthen the use of smoothing techniques, such as the profit equalization reserves (PER) and the investment risk reserves (IRR), as they allow them to further stabilize the revenues payout for the investment account holders (IAH) and therefore mitigate withdrawal risk. Standardizing the smoothing techniques could be a solution to overcome the variability of this category of revenue.

This work is the first of its kind for Islamic banks. It extends previous research by examining whether or not managers may smooth their results naturally or intentionally. It also helped to bridge the gap in the literature by providing the empirical evidence on the smoothing returns in Islamic finance.

Income smoothing is exercised by the management for numerous reasons. Growth opportunities available to a firm are a very important reason but an undermined area for income smoothing by the management. This paper aims to review the income smoothing practices in corporate enterprises in India with respect to growth pattern of a firm as measured by investment opportunity set (IOS) defined in Fudenberg and Tirole’s (1995) model. In India, the main corporate ownership model is promoter dominated shareholders model. This makes the study unique highlighting the role of board for income smoothing. The study contributes by extending this model to earnings per share definition with IOS by a firm. The study also investigates the level of income smoothing and its impact on the informativeness of earnings in regard to IOS.

The enterprises have been chosen on the basis of their performance in terms of profit generation [profit after tax (PAT) performance] for the year 2007-2008 as per Economic Times October 2007 Survey in a private sector. The period to be covered is from 2003-2004 to 2007-2008. 2007-2008 has been a year of global recession which is an indicative reason for income smoothing by the corporate. DeAngelo model has been used for calculating discretionary accruals and detecting income smoothing. Fudenberg and Tirole’s (1995) model has been specifically used in studying the relationship between IOS and income smoothing. Specifically, we use three variables to construct an index of the IOS of each firm, market-to-book assets, market-to-book equity and the earnings price ratio.

An examination of the units shows that there is smoothing behaviour exercised by them. Analytical results of anticipatory smoothing and the IOS propose that concern about job security creates an incentive for managers to smooth earnings in consideration of both current and future relative performance. More explicitly, the extent of smoothing is expected to be negatively related to the level of IOS in periods of low current/high future performance and positively related to the level of IOS in periods of high current/low future performance. The empirical results confirmed our predictions.

The sampling requirements were met by 12 units only of top 25 units, taken for the study. So, the present study was confined to only 12 profit-making corporate enterprises in the private sector in India, leaving all other enterprises. Though these companies constitute a significant size of Bombay Stock Exchange’s market capitalization for completeness of data, still the size can be extended for further study. The present study has not considered public sector units and closely held companies. The scope of the units can be extended to other units in diverse sectors with different size and scale of operations. It would further verify the present discussion and also provide future enlightenment on the issue of income smoothing. The magnitude of discretionary accruals has been analysed in regard to potential earnings management. But, discretionary accruals are not directly available. They are calculated as a proxy using a model. Estimating discretionary accruals is still a tedious task.

The results clearly indicate that growth opportunities available to a firm are potential indicative of a firm’s income smoothing behaviour. The findings of this study are important to standard setters and regulators, as it highlights the need for an effective regulation for detecting income smoothing. There is a strong need to have well-defined policies and regulatory mechanism with respect to prevent and detect income manipulation practices at an early stage. Standard-setting bodies can consider the attributes of assets and liabilities and changes in them also with the fundamental process of measurement of income. In short, the evidence argues for a revenue/expense and asset/liability view of earnings, rather than the cash-flow view of earnings. The findings of this study are important to policymakers and other stakeholders, as it highlights the need for an effective board in discharging their role qualitatively, rather than quantitatively.

It brings out the importance of fair accounting for shareholders.

It is an original paper which highlights the income smoothing behaviour in Indian corporate enterprises in terms of growth opportunities available to them.

Fudenberg and Tirole (1995) argue that concern about job security creates an incentive for managers to smooth earnings. Consistent with their model, Defond and Park (1997) show that managers smooth earnings in consideration of both current and future relative performance. To provide a more direct evidence of anticipating smoothing and job security, we hypothesize that the extent of income smoothing will vary with managers' job security concerns as proxied by the level of the investment opportunity set or growth opportunities. Our results confirmed our predictions.

The purpose of this paper is to develop an effective and reliable corner detection algorithm so as to extract all the desired corners successfully. In addition, the influences of edge detection method as well as smoothing technique on the overall performance of corner detection techniques are investigated.

In this paper, an effective corner detection algorithm based on subpixel edge detector and Gaussian filter is presented. First, a subpixel accuracy edge detector is used rather than a pixel accuracy edge detector to detect edges. Second, B‐splines approximation technique is used to eliminate the staircase effect of a digital curve. Third, curvature curve derived from the edges is smoothed by a Gaussian filter. Finally, statistical process control technique is applied to detect vertices.

The results show that spatial‐moment outperforms chain code as an edge detector. Furthermore, the Gaussian filter should be used to smooth curvature curve instead of smoothing the profile of an object, because the former provides greater impact on the corner detection results.

In addition to object recognition, motion tracking and obstacle avoidance, the proposed method also has many important engineering and manufacturing applications such as dimensional measuring, reverse engineering, and machine vision‐based computer numerical control (CNC) machining of polygonal sheet metal parts.

The purpose of this paper is to examine empirically whether corporate governance mechanisms have an effect on income‐smoothing behavior in the People's Republic of China.

The sample comprises 1,358 companies listed in the Shanghai Stock Exchange and the Shenzhen Stock Market during the period 1999 to 2006. By comparing the variability of income to the variability of sales, an income smoother can be identified if income is less variable than sales.

The authors' empirical results show that income smoothing is more severe when the state is the controlling shareholder of the Chinese listed firm. Firms with more independent directors are more likely to engage in income smoothing. The governance mechanisms such as board of directors, supervisory board, audit committee, external auditors, and shareholders' participation are not effective in curtailing income smoothing in China.

For Chinese firms and especially government‐linked enterprises, the way in which they present themselves may be significant, since the image they present to potential strategic partners may be marred by suspicions of income smoothing.

The paper presents the current development of China's corporate governance system and indicates that agency conflicts between controlling shareholders and minority investors account for a significant portion of earnings management in China.

The purpose of this paper is to investigate the relationship between tax avoidance, firm value and managerial ability in Tehran Stock Exchange and Over the Counter (OTC), according to the related theoretical foundations.

To calculate the managerial ability in this study, DEA is used based on the accounting data, company profile and industry and the hypotheses are estimated in a period of 12 years during 2004 to 2015 in TSE and OTC. Within the previous studies, to test the hypotheses, only the classical regression method is usually used and most of the times the effect of macroeconomic variables is not considered. In this study, in a new act for testing the hypotheses, three statistical methods are used, that is, classical regression models, mixed effects multilevel models and Bayesian multilevel models. Also in this study, the test of structural change is used to control the effects of macroeconomic variables, like inflation and other economic and political influence, on the results.

The results of these three methods show that the effect of income smoothing and earnings quality on the relationship between tax avoidance and firm value are significant.

Although several studies are conducted so far on the subject of the study, the current study is the first project which combined Bayesian econometrics. Therefore, the results are quite noble.

This paper aims to examine the association between income smoothing and the cost of debt in two different countries, namely, the UK and Nigeria.

The authors used a sample from listed firms in the UK and Nigeria during 2000–2019. The study hypotheses are examined by implementing quantitative methods, including panel regression analysis, cross-sectional regression analysis and parametric independent samples t-test.

The results reveal that Nigerian companies have a substantially higher cost of debt and are more active in using income-smoothing practices. However, the relationship between income smoothing and the cost of debt is not found to be statistically significant in both countries. Besides, the results of this study show that financial leverage, profitability, company size and asset turnover are significantly associated with the cost of debt.

The study contributes to the existing literature by providing new insights concerning the contrast between developed and developing countries in financial and reporting issues.

This study aims to improve the performance of hydrodynamic journal bearings through partial grooving on the bearing surface.

Bearing performance analysis is numerically carried out using the thin film flow physics of COMSOL Multiphysics 5.0 software. Initially, the static performance analysis is carried out for hydrodynamic journal bearing system with smooth surface, and the results of the same are validated with results from the literature. In the later part of the paper, the partial rectangular shape micro-textures are modeled on bearing surface. The effects of partial groove pattern on the bearing performance parameters, namely, fluid film pressure, load carrying capacity, frictional power loss and frictional torque, are studied in detail.

The numerical results show that the values of maximum fluid film pressure, load carrying capacity, frictional power loss and frictional torque are considerably improved due to deterministic micro-textures. Bearing surface with partial groove along 90°-180° region results in 81.9 per cent improvement in maximum fluid film pressure and 75.9 per cent improvement in load carrying capacity as compared with smooth surface of journal bearing, with no increase in frictional power loss and frictional torque. Maximum decrease in frictional power loss and frictional torque is observed for partially grooving along 90°-360° region. The simulations are supported by proof-of-concept experimentation.

This study is useful in the appropriate selection of groove parameters on bearing surface to the bearing performance characteristics.