بررسي عوامل موثر بر كيفيت گزارشهاي حسابرسي و تاثير عوامل مذكور در ضريب همبستگي تغييرات قيمت و تغييرات سود سهام

Reviewing Factors of Considerable Importance and Influence to the Issue of Audit Reports Quality and the Effects of these Factors on Coefficient of Correlation of Stock Dividends and Price

As a matter of great concern, there are many reasons that can be mentioned for the necessity of measuring the extent of reliability to be put on financial information. These such as the conflict of interests involved, the complexities entangled with the substance of various phenomena in the area of economy and etc, in the other hand, the fraudulent breakdown of giant companies such as ENRON and TYCO became the main reason for seriously taking in to consideration the use of independent auditors services, aimed at close supervision and placing more emphasis on the quality of audit reports. Researches done across the world (DEANJELO-1981,LAM & CHANG-1994, CHANTAO-2007,...), proved many factors of considerable importance and influence to the issue of audit reports quality, those such as the size and diversity of clients business along with their fame. According to dominant views and consensus prevalent in the world, audit report prepared and issued by large auditing firms demonstrate more quality compared to those of small ones , as it is true with firms acting in a single specialized field of work with no diversification within contrast to firms with opposite conduct (diversified and multi - specialized ). As a result, concerning the influential factors in the issue of quality, two of them, the clients diversification (diversified and specialized) and the size ( large and small ), to be examined under the Field Study , have been chosen, while the audit quality being taken as not to be a matter of oversight. Misstatements not discovered and thus not discussed in audit reports have been viewed as the criteria for quality and as a result, a basis for evaluation of firms in terms of diversity and size. As the key factors to quality, have proved itself to be an influential in market reaction and changes in stock dividends(EPS), based on broad range of researches coefficient of correlation between changes in stock dividends and price has gone under examination in terms of diversity and size. Examination performed did not vindicate the veracity of research assumptions. It is essential to inquire about the underlying causes of assumptions not being approved (being disproved), by considering other factors. Answering some of the question involved, requires further prospective studies.