Voluntary disclosure is viewed as an essential communication tool through which the company's ideas can be promoted to potential stakeholders, which contributes to achieving the company's growth and sustainability. This study came to reveal the reality of voluntary disclosure in the Jordanian industrial companies and its impact on its market value. The descriptive-analytical approach was adopted, where content analysis of the financial reports published by 72 industrial companies listed on the Amman Stock Exchange during the period (2016-2022). The study found that the level of disclosure of non-financial items included the aspects of the board of directors, social responsibility, and community policy were high, which reached 56%, compared to the level of disclosure of financial items, which reached 43%. This indicates that companies pay more attention to disclosing non-financial items than financial items. In addition, the study indicated that companies with a high level of voluntary disclosure have a better market value compared to those companies that have not disclosed or have a lower level of disclosure. Moreover, increasing voluntary disclosure of strategic information, financial information, and non-financial information increases the market-to-book value, because voluntary disclosure enhances the information available to investors about shares, which in turn improves the market value.

This paper presents an empirical investigation on the perceptions of individual investors about the impact of accounting disclosures on their decision makings on the stock exchange market. The study uses some quantitative methods with survey questionnaires sent to investors participating in the Vietnam stock market. By using SPSS 22, the research develops a research model with 11 accounting information groups (factors) which are measured by 82 items. The results indicate that the income information significantly affected investors’ decisions on buying, selling and holding securities while the information on assets, the accounting principles and policies had little impact on individuals’ investment decisions. The voluntary disclosures, however, show more effects than mandatory disclosures on the investors' decision making.

This study is an empirical research into the gap between disclosures in annual reports by listed companies and the needs of information by individual investors for investing decisions. The research uses some quantitative methods with the data collected from the annual reports of the top 30 non-financial listed companies having the high market capitalization and good liquidity on the Vietnam Stock Exchange. The authors compare 82 information disclosed by the corporates with the expectations of the investors by using SPSS 22. The results indicate that there is a discrepancy between the perception of individual investors and listed companies about the useful information in the corporate reports. In addition, both the mandatory and voluntary disclosures do not satisfy the requirements of the investors; however, the mandatory information is provided more than the voluntary one by the listed companies.