یکسونگری در حسابداری و ارتباط ارزش اطلاعات حسابداری

The objective of this study is to examine the value relevance of accounting earnings and book value of equity in explaining stock price. The study investigated whether bias in accounting influence earnings response coefficient and book value of equity coefficients. The study shows that accounting earnings and book value of equity are positively associated with stock price. Accounting earnings and book value of equity are useful to explain stock price changes. The results also shows that earnings response coefficient is smaller in the firms that have both conservative accounting or liberal accounting.

Financial statements that are published by an entity must actually disclose the condition of the entity, so that give benefit to public. Information that is useful for decision making should have value relevance. One of the indicator that an accounting information is relevant is there is a reaction of investor at the time of announcement of information that can be observed from the existence of move The focus of this research is the examination of the coefficients related to accounting earnings and equity book value information. This coefficients measure share price or equity market value response to an information which implied in accounting earnings and equity book value.Studies which examine earnings response coefficient (ERC) find that ERC vary by cross-section. The variation can be explained by some factors like risk, growth, earnings persistence, and interest rate (for example Collins and Kothari, 1989; Easton and Zmijewski, 1989). Studies concerning variation of equity book value coefficient also have started to get attention which is generally done with testing the combination of earnings coefficient and book value coefficient (Barth et al, 1998; Burgstahler and Dichev, 1997; and Ou and Sepe, 2002). This research tries to find whether bias in accounting influence earnings response coefficient and equity book value response coefficient.

This objective of this research is to test the value relevance of accounting earnings and value relevance of book value equity. The research tries to identify factor influencing accounting earnings and book value of equity response coefficients. The influence of accounting earnings and book value of equity to share price depend on bias in accounting.The examination of hypothesis is done by regression model with independent and dependent variables. Independent variables consist of accounting earnings and book value of equity, and factors influencing accounting earnings and book value of equity response coefficients. Dependent variable is share price which have been adapted for possibility of the existence of inefficient market.The results indicate both accounting earnings and book value of equity influence share price. This result strengthens the result of previous study (for example Burgtahler and Dichev, 1997; Collins et al, 1999).Accounting earnings and book value of equity represent variables that can be used to explain equity value. The company that applying liberal and conservative accounting practice, have earning response coefficient and book value response coefficient that is lower than the coefficient of neutral company. This result is according to Zhang, X (2000). Lower earning and book value response coefficient at company applying liberal and conservative accounting, caused by the existence of bias in accounting earnings and book value.