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Considering the standards developed by the Sustainability Accounting Standards Board (SASB), this study aims to examine whether the link between material sustainability and financial performance depends on the extent to which the company is oriented toward stakeholders.

To test the predictions, 13,942 firm-year observations from 43 different countries are used, covering the period from 2010 to 2019. Using a hand-mapping approach to match the indicators suggested by the SASB with those of the ASSET4, the authors realize that there are 170 material sustainability indicators among 466 indicators of the ASSET4. The authors use three different methods to verify if the materiality matters, including the alphas obtained from the Fama and French factor models, comparing the average abnormal returns of the portfolios and the bootstrapped Cramer technique.

The findings show that companies investing in material sustainability activities perform better than those investing in immaterial activities. Also, consistent with the theoretical foundations, the authors find that the effect of investing in material sustainability activities is more pronounced in stakeholder-oriented countries than that in shareholder-oriented countries. The results are robust to a battery of sensitivity tests.

Owing to COVID-19 in late 2019, data from 2020 to 2022 have not been used to obtain reliable results.

The results obtained in the current research provide valuable guidance for investors to make investments considering the degree of materiality of sustainability activities in different industries. It also helps managers to increase the company’s financial performance, make efficient decisions related to investment in sustainability activities and find investment strategies on the material sustainability issues in their industries.

This study provides a clearer understanding of investment in sustainability activities in different industries by separating material and immaterial sustainability activities in stakeholder and shareholder-oriented countries, and the results obtained can change the perspective of investors and company managers regarding investing in such activities in different countries. Investing in more materiality sustainability activities than the immateriality dimension can be new opportunities for companies to achieve predetermined goals, help retain and attract business partners or be a source of innovation for new product lines or services. Internal morale and employee engagement may increase while increasing productivity and firm performance. This discussion opens the way for future research.

This study provides insight into the effect of investing in material and immaterial sustainability activities in different industries on the company’s performance in shareholder and stakeholder-oriented countries.

Previous literature posits that corporate governance and information asymmetry are the main factors in making efficient investments. Meanwhile, a growing body of studies is of the opinion that corporate governance can also mitigate the problem of information asymmetry and consequently exerts significant impacts on the association between information asymmetry and investment efficiency. This study aims to analyze the impact of corporate governance and information asymmetry on investment efficiency. It also tests the moderating role of corporate governance in the relationship between information asymmetry and investment efficiency.

The sample consists of 4,082 firms domiciled in 20 developed countries over the years from 2003 to 2019, including 33,812 firm-year observations. The bid–ask spread is used as a proxy for information asymmetry. To measure corporate governance performance, a proxy provided by ASSET4 is employed, and to determine the optimal levels of investments, we relied on the growth opportunity. To estimate the models, ordinary least squares and generalized method of moment are used.

The results reveal that information asymmetry is inversely related to investment efficiency, and, corporate governance mitigates this negative association.

This paper sheds light on the role of corporate governance in firms as a lever for mitigating information asymmetry and tries out information asymmetry and agency theories in relation to the impact of information asymmetry on investment efficiency. It also confirms the theory stating that corporate governance can be considered as a determinant of investment efficiency.

This paper aims to investigate the impact of debt maturity on the relationship between financial leverage and future financing constraints. Moreover, it attempts to analyze the moderating role of short-term debt and the mediating role of future financing constraints in the relationship between financial leverage and future investment.

To test the moderating role of debt maturity, all the observations are divided into two groups based on short-term debt to total debt ratio. Moreover, Sobel, Aroian and Goodman tests are used to analyze the mediating role of future financing constraints. The sample used in this research includes firms listed on the Tehran Stock Exchange from 2006 to 2018.

It is shown that financial leverage is inversely (positively) related to future financing constraints for firms with higher (lower) use of short-term debt and, short-term debt moderates the relation between financial leverage and future investment. The findings also indicate that future financing constraints carry the influence of financial leverage to future investment.

In an imperfect market where financing is not independent of investment, it is highly required to carry out some studies on the role of different financing scenarios in firms and their impacts on future financing and investment; therefore, this paper is conducted to address one of the most important issues in the capital market, which is almost the pioneer study in this field.

Employing a large sample consisting of 3,701 corporations domiciled in developed and emerging countries, this paper aims to analyze the mediating role of investment efficiency in the association between business sustainability performance and corporate financial performance.

Four different aspects of corporate sustainability offered by the ASSET4 database are used as proxies for business sustainability performance, including economic, corporate governance, social and environmental dimensions. In addition to these aspects, the aggregate measure of business sustainability performance is also employed. In order to test the association between business sustainability and corporate performance via investment efficiency, ordinary least squares, fixed-effect, random-effect and generalized method of moments statistical models were employed.

The results suggest that business sustainability performance is positively associated with corporate financial performance, indicating that sustainable corporations enjoy higher financial performance. Moreover, Sobel, Aroian and Goodman tests confirm that investment efficiency mediates the positive relationship between business sustainability performance and financial performance. Finally, further analyses show that the positive association between sustainability performance and investment efficiency is stronger for those firms headquartered in developed countries than in those located in emerging nations.

This paper contributes to the literature by investigating how growth opportunities advance the influence of business sustainability to corporate financial performance using a large sample from 43 countries.

The purpose of this paper is to investigate the relation between debt structure and future external financing and investment. Furthermore, it aims to analyze the association between debt structure and future financial performance.

Volume, maturity, possessing collateral and having priority at the settlement date are the dimensions of debt structure that have been employed in this paper. The sample consists of 1,060 firm-year observations from Tehran Stock Exchange corporations during the period 2009–2018.

The findings reveal that greater reliance on financial leverage (debt volume) and short-term debt are associated with increases in future debt financing as well as future equity financing. Moreover, these two dimensions of debt structure are positively related to future investment. This paper also shows that the positive impact of financial leverage and short-term debt on future financing and investment can finally lead to a favorable financial performance. Regarding other dimensions of debt structure, the results suggest that although collateralized debt with the priority option at the settlement date enhances future external financing, this type of debt can ultimately lead to a reduction in future investment and financial performance. Finally, the findings indicate that uncollateralized debt exacerbates future financial performance.

Financial performance can be affected by several factors, including available funds, investment amount, investment efficiency and managerial capability. However, this paper only considers the investment amount and external financing as the channels through which debt structure improves future financial performance. This study has the potential to contribute to one of the most important issues in finance and business fields, despite its probable trivial drawbacks.

Financing strategies as one of the most controversial topics have been meticulously scrutinized in this paper and practical implications are made to facilitate the process of decision-making regarding the optimal type of debt financing.

This study extends the literature by analyzing the direct link between debt structure and firm performance in firms domiciled in developing markets.

This paper aims to investigate opportunities of the short- and long-run international portfolio diversification (IPD) benefits by investing in the Middle Eastern oil-producing countries. Over the past decades, IPD has been the integral feature of global capital markets. Several potential benefits like increasing returns and/or reducing risk have made investors to internationalize their portfolios. Solnik’s theory (1974) approved that gains can be achieved through IPD if returns in the different markets are not perfectly correlated. This may attribute to low correlations of equity returns among different economies. In this regards, there would be a large potential of diversification benefits for investors that diversify into new emerging group of economies such as equity markets of the main oil-producing countries. These markets are often segmented and they may ensure a superior return rate for a given risk level.

In most of the previous studies, Pearson’s correlation test is used to analyze the short-run relationship of market prices. However, recent empirical studies indicate that correlations between equity returns vary over the time. To examine the time-varying conditional correlation, this paper used the dynamic conditional correlation (DCC) model to investigate opportunities of the short-run IPD benefits. In addition, for the long-run linkage analysis, the autoregressive distributed lag (ADRL) approach introduced by Pesaran et al. (2001) is applied.

It is found that, the market returns of the sampled countries are not definitely correlated in the short- and long-term. So, international portfolio investors may get the short- and long-term diversification benefits by diversifying their portfolios among the Middle Eastern equity markets, namely, Iran, Bahrain, Qatar, Kuwait, Oman, Saudi Arabia and UAE.

This paper departs from earlier studies by focusing on the dynamic characteristics of correlation. Two main issues are pursued in this paper. First, instead of modeling the correlation by methods like Pearson correlation coefficient that consider the constant-correlation assumption, this paper directly uses the DCC model. Second, to empirically estimate the long-run relationship among stock markets in the Middle Eastern oil-producing countries, the ARDL approach is utilized. The ARDL approach is more robust and performs well for small sample sizes than other co-integration techniques.

The purpose of this paper is to present a multi-objective model to the optimum portfolio selection using genetic algorithm and analytic hierarchy process (AHP). Portfolio selection is a multi-objective decision-making problem in financial management.

The proposed approach solves the problem in two stages. In the first stage, the portfolio selection problem is formulated as a zero-one mathematical programming model to optimize two objectives, namely, return and risk. A genetic algorithm (GA) with multiple fitness functions called as Multiple Fitness Functions Genetic Algorithm is applied to solve the formulated model. The proposed GA results in several non-dominated portfolios being in the Pareto (efficient) frontier. A decision-making approach based on AHP is then used in the second stage to select the portfolio from among the solutions obtained by GA which satisfies a decision-maker’s interests at most.

The proposed decision-making system enables an investor to find a portfolio which suits for his/her expectations at most. The main advantage of the proposed method is to provide prima-facie information about the optimal portfolios lying on the efficient frontier and thus helps investors to decide the appropriate investment alternatives.

The value of the paper is due to its comprehensiveness in which seven criteria are taken into account in the selection of a portfolio including return, risk, beta ratio, liquidity ratio, reward to variability ratio, Treynor’s ratio and Jensen’s alpha.